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FiberPort Collimators / Couplers


  • Ultrastable Micropositioning Alignment with Five Degrees of Freedom Plus Rotation Adjustment
  • Usable with Single Mode, Multimode, and Polarization-Maintaining Fiber
  • Aspheric or Achromatic Lens
  • Models Available for 350 nm - 5 µm

PAF2-A4A

Achromatic FiberPort,
FC/PC and FC/APC,
350 - 700 nm AR Coating

PAF2P-11E

Aspheric FiberPort,
FC/PC, 2.0 - 5.0 µm AR Coating

PAF2A-18D

Aspheric FiberPort,
FC/APC, 1.8 - 2.4 µm AR Coating

PAF2S-11A

Aspheric FiberPort, 
SMA, 350 - 700 nm AR Coating

Related Items


Please Wait
This animation provides an introduction to the mechanism of the FiberPort and shows how the FiberPort can be used as a collimator. For more information, please see the Alignment Procedure tab.

Features

  • Five Degrees of Freedom Plus Rotational Adjustment
  • Low Hysteresis (See Graphs Tab for More Information)
  • FC/PC, FC/APC, and SMA Versions
    • FC/PC and FC/APC Versions Accept Both 2.1 mm Wide Key and 2.0 mm Narrow Key Connectors
    • SMA FiberPorts are Designed for SMA905 Connectors
  • Available with Either an Aspheric or an Achromatic Lens
  • Suitable for Single Mode (SM), Multimode (MM), and Polarization-Maintaining (PM) Fiber
  • AR Coating Options for Visible, NIR, and MIR Wavelength Ranges (See Selection Guide Tab for Details)

Thorlabs' compact, ultrastable FiberPort micropositioners provide an easy-to-use platform for coupling light into and out of optical fibers. They are available with FC, FC/PC-, FC/APC-, or SMA fiber bulkheads; the FC bulkhead is compatible with both FC/PC- and FC/APC- terminated fiber. Each FiberPort includes an achromatic or aspheric lens with a focal length ranging from 2.0 mm to 18.4 mm. Their compact size; repeatable, high-resolution alignment mechanism; high thermal stability; and translation locking mechanisms (detailed in the Operation tab), make the FiberPort an ideal solution for long- or short-term fiber coupling and collimation. Each FiberPort is factory aligned for collimation at the wavelength specified in its respective mechanical drawing, which can be found by clicking on the red document icon () below. For information about the hysteresis and thermal stability, please see the Graphs tab.

For a higher maximum theoretical coupling efficiency, we recommend using FiberPorts with our AR-coated single mode, multimode, or polarization-maintaining fiber optic patch cables for coupling and collimating light, as these patch cables reduce back reflections from high powered sources. For FiberPorts being used in the mid-infrared spectral region, we recommend our fluoride fiber patch cables

Five Degrees of Freedom (Plus Bulkhead Rotation)
While holding the connector and fiber stationary, the built-in lens can be aligned with five degrees of freedom: linear alignment of the lens in X and Y, angular alignment for tip and tilt, and Z adjustment using the tip and tilt controls simultaneously. The travel range of the aspheric lens in the X and Y direction is ±0.7 mm with a resolution of 317 µm per revolution. The travel range in the Z direction is ±1.0 mm with resolution of 200 µm per revolution. In addition, the three flat-head screws on the front plate can be loosened to enable rotation of the bulkhead for PM fiber alignment. After alignment is complete, a locking setscrew on the side of the housing can be tightened to secure the X and Y position, as can the locking collars on the Zθ adjusters to lock the tip/tilt position. See the Operation tab for complete details on operating a FiberPort. Please contact Tech Support for complete instructions regarding bulkhead adjustment.

Mounting Options
FiberPorts contain four #2 counterbores that provide mechanical compatibility with our FiberBench accessories. We have also developed adapters for using FiberPorts with Ø1/2" posts, 30 mm cage systems, and HeNe lasers. Please see the FiberPort Mounts tab for more information.

Included Hardware
These FiberPorts include a dust cap, a 0-80 locking screw, 0.028" hex key for the locking screw, a 0.050" hex key for the Zθ, X, and Y adjusters, and an SPW403 spanner wrench for the Zθ locking collars.

Over the ten year lifetime of the first generation FiberPorts, we received feedback regarding their design, functionality, and operability. Based on customer feedback, we have made a number of improvements to the line, adding even more features and enhancements. This resulted in the second generation of the FiberPorts, introduced in March of 2018. These FiberPorts feature:

External SM1 Threading

For integration into many of our optomechanical components, we have added an SM1 (1.035"-40) external threading to the body of the FiberPort.

Locking Collars

Locking collars have been added to the Zθ adjusters to fix the alignment position. The collars can be locked without affecting even single mode alignments. They also prevent overtravel of the Zθ adjuster screws.

Matched Material CTEs

The materials used in the new generation of FiberPorts have matched coefficients of thermal expansion (CTEs) to ensure optimal thermal performance. Additionally, the lens cell and tilt plate are made of hardened stainless steel for additional stability.
PAF2 Design Improvements
External (Left) and Internal (Right) FiberPort Feature Improvements

Ceramic Ball Seats & Hardened Adjuster Ends

The long-wearing ceramic ball seats and the hardened adjuster ends ensure a secure fit and thermal stability.

Robust Leaf Spring

The new leaf spring geometry reduces the risk of a bent leaf spring, ensuring repeatable and consistent travel in X and Y while minimizing hysteresis.

Kinematic Design

The extension springs follow the dowel-and-spring design of our kinematic mounts, making the adjustments more repeatable and consistent.

130 TPI Adjusters

The higher resolution adjusters allow for finer translation of the tilt plate.

Additional Information

Click on the boxes below for more details.


Click to Enlarge

Internal Mechanism of the FiberPort with and without the Outer Body Removed

X-Y Adjustment

Specifications
Screw Size 0-80
Hex Size 0.05"
(1.3 mm)
Adjustment per Revolution 317 µm 
Translation Range ±0.7 mm

The magnetic lens cell (MLC) can be translated in X-Y, independently from the tilt plate, using the socket head cap screws (SHCS) in the side of the FiberPort body, highlighted in blue and red above. Each adjuster is labeled as X and Y for easy and quick identification. The travel range of the lens in the X and Y directions is ±0.7 mm. See the above table for additional specifications for our X-Y adjuster screws. Note that when a FiberPort is used in a standard collimation or coupling application, only a small portion of this translation range is needed.

Once final adjustments are made, the position of the lens cell can be locked via the 0-80 locking screw at the 4:30 position. This locking screw is not installed when the FiberPort is shipped, but is included. Please note that locking is not necessary in most applications, and tightening the locking screw may affect coupling.

X-Y translation is performed independently from angular and Z-axis adjustments. The lens cell, which is magnetically attached to the tilt plate, rests on a leaf spring that provides a counterforce. Each X-Y adjuster is stabilized by setscrews to remove backlash. These setscrews, accessible from the top of the FiberPort, can be used to tune the feel of the X-Y screws.

Zθ Adjustment

Specifications
Screw Size M2 x 0.2
Hex Size 0.05" (1.3 mm)
Adjustment per Revolution
200 µm
Translation Range ±1.0 mm

Each FiberPort consists of a lens cell that is magnetically adhered to a tilt plate. This tilt plate is actuated using three Zθ adjusters, highlighted in green above. Each adjuster is labeled with Zθ1, Zθ2, or Zθ3 so it is easy to tell which adjuster has been or will be adjusted. Turning each adjuster in equal increments enables Z-translation along the optical axis of the FiberPort. The Z-axis translation range is ±1.0 mm. See the above table for additional specifications for our Zθ adjuster screws.

Once final adjustments are made, the position of the tilt plate can be locked via the included locking collars and SPW403 spanner wrench. These adjusters are lockable while maintaining single mode alignment.

The mechanics behind translation of the tilt plate is very similar to the dowel-and-spring construction of our kinematic mounts. Each adjuster has a hardened steel ball-end that rides in a ceramic ball seat. Both the ball-end and ceramic seat are attached using a high temperature, low outgassing epoxy to provide a stable, long wearing kinematic system. The extension springs provide counterforce against the fine adjust screws.


The L in the above mechanical drawing calls out the overall length from the front of the FiberPort, minus the connector bulkhead, to the front face of the mounting flange. This value depends on the focal length and the connector bulkhead. See the tables below for the exact length of each FiberPort.

AR Coatings

FiberPort Reflectance Curves
Click to Enlarge

Each FiberPort lens is available with -A (350 - 700 nm), -B (600 - 1050 nm), -C (1050 - 1620), -D (1.8 - 2.4 µm), or -E (2.0 - 5.0 µm) coating.



Thermal Stability

Procedure:
The thermal stability of the FiberPort was measured by changing the temperature of the environment by ±10 °C, and measuring the coupling efficiency as it varied with the temperature. These measurements were taken using a PAF2P-11A and PAF2P-11A on an FB-38 FiberBench. A 635 nm source was used with single mode fiber. Please note that the thermal stability depends highly on the components and system setup.
 
Results:
The ~5% change in coupling efficiency is a result of the movement of all components in this FiberBench/FiberPort system. This change results in approximately 0.5 µm movement of the beam spot relative to the fiber core. After the temperature has changed, upon returning to the original temperature, the coupling efficiency returns to within 1% of the original value.


Fine Axis Repeatability

Procedure:
The repeatability of the Zθ adjustments was measured by translating the Zθ adjusters by 200-300 µrad and returning to the starting position at approximately (0,0). This was done three times. To measure this movement, a beam emitted from the FiberPort was transmitted to a CCD beam profiler. These measurements were done with the PAF2P-11A with an input wavelength of 635 nm. 

Results:
As seen in the graph to the right, these FiberPorts exhibit good repeatability and low hysteresis. These values are typical and will change based on the selected wavelength and focal length of the FiberPort.

Achromatic Focal Shift

PAF2-A4A Focal Shift
Click to Enlarge
The Focal Shift for the PAF2-A4A from 400 - 850 nm
PAF2-A4B Focal ShiftClick to Enlarge
The Focal Shift for the PAF2-A4B from 600 - 1050 nm
PAF2-A4C Focal ShiftClick to Enlarge
The Focal Shift for the PAF2-A4C from 1050 - 1550 nm
FiberPort Calulator

Introduction

Before selecting a FiberPort, it is crucial to consider:

  • The wavelength of your source,
  • The fiber type (single mode, multimode, or polarization maintaining),
  • The fiber connector (FC/PC, FC/APC, or SMA), and
  • The desired lens type (achromatic or aspheric).

With this information, it is possible to find what FiberPort is most compatible with your configuration. The method below illustrates the best way to find a FiberPort to use for coupling. This example considers a single mode fiber as the fiber that is being coupled. The calculations needed to determine whether a FiberPort is compatible with a single mode fiber are more complex than with a multimode fiber, which primarily considers the NA of the fiber and the lens. 

Click the button to the right to download a macro-enabled Excel file that can assist in finding the best FiberPort for you coupling application. For additional questions, please contact Tech Support.

Calculating the Effective Focal Length

Example:

  • Wavelength: 633 nm
  • Fiber: P1-630A-FC-2
  • Collimated Beam Diameter Prior to Lens: Ø3 mm

The specifications for the P1-630A-FC-2, 633 nm, FC/PC single mode patch cable indicate that the 1/e2 mode field diameter (MFD) is 4.3 μm at 633 nm. The MFD should equal the diffraction-limited spot size Øspot, which is given by the following equation:

Fiberport Spot Size Equation

Here, f  is the focal length of the lens, λ is the wavelength of the input light, and D is the 1/e2 diameter of collimated beam incident on the lens. Solving for the desired focal length of the collimating lens yields:

Fiberport Spot Size Example

Thorlabs offers a large selection of FiberPorts. You'll note that the FiberPort with a focal length closest to 16 mm has a focal length of 15.3 mm (Item # PAF2P-15A), while also meeting the requirements for fiber connector type and antireflection coating range. This FiberPort also has a clear aperture that is larger than the collimated beam diameter. Therefore, this is the best option given the initial parameters (i.e., a P1-630A-FC-2 single mode fiber and a collimated beam diameter of 3 mm).

For optimum coupling, the spot size of the focused beam must be less than the MFD of the single mode fiber. As a result, if a FiberPort is not available that provides an exact match, then choose the FiberPort with a focal length that is shorter than the calculation above yields. Alternatively, if the clear aperture of the lens is large enough, the beam can be expanded before the lens, which has the result of reducing the spot size of the focused beam.

Please note that the NA values in the specification tables below are the numerical apertures of the lenses, not the required numerical aperture of the fiber you are using. As long as the lens NA is smaller than the NA of your fiber, you should be able to couple light. Please note that if your collimated beam diameter is smaller than the clear aperture of the lens you will need to recalculate the NA using the beam diameter. For best results, Thorlabs recommends using the equations above when choosing a FiberPort, or to use the calculator linked above.

Selecting a Lens

When selecting a FiberPort, it is essential to ensure that the lens included in the FiberPort is compatible with your setup. In particular, the wavelength of the laser source must fall within the AR coating range of the lens, and the spot radius and focal shift should perform in such a way that is beneficial to your system.

AR Coatings

The lenses in Thorlabs’ FiberPorts use our -A (350 - 700 nm), -B (600 - 1050 nm), -C (1050 - 1620 nm), -D (1800 - 2400 nm), or -E (2000 - 5000 nm) AR coatings. The plot to the right shows the typical per-surface reflectance of each AR coating. Each AR-coated lens is housed in a FiberPort package designed to be compatible with FC/PC-, FC/APC-, or SMA-terminated fibers. Care should be taken in selecting a FiberPort to make sure the correct fiber/connector/FiberPort combination is selected. AR-coating information and connector compatibility for each FiberPort are outlined in the tables below. If you need assistance, please contact Tech Support.

Aspheric vs. Achromatic FiberPort Performance

Thorlabs' achromatic FiberPorts utilize cemented doublets designed to minimize chromatic aberrations, making them ideal for collimating broadband light sources or sources with multiple discrete wavelengths. The small focal length shifts experienced by an achromatic doublet allow the FiberPort to be used over a broad wavelength range without the need for realignment (see the Graphs tab for more details). 


Click to Enlarge

The performance of the achromatic doublet used in an achromatic FiberPort is compared to the aspheric lens used in a FiberPort with the same effective focal length, for a collimated beam focused onto a fiber. The lens is aligned to focus the light onto the fiber at 580 nm. Over a given wavelength range, the achromatic doublet produces a focused spot on the fiber, while the aspheric lens produces a series of wavelength dependent foci along its optical axis due to chromatic focal shift. Since the fiber's position was fixed at the focus of the aspheric lens, the spot size changed drastically with wavelength. However, appropriate adjustment of the fiber’s position as the wavelength is changed can minimize this effect.

Click to Enlarge

This graph represents the focal length shift for the same setup described in the plot to the left. Both lenses have a similar focal length (F) at ~580 nm. Overall, the focal shift experienced by the aspheric lens in the range 475 nm - 655 nm (except ~580 nm) is approximately an order of magnitude larger than that of the achromatic doublet. For wavelengths less than 580 nm, the beam comes to a focus at a distance < F and longer wavelengths are focused at a distance > F.
This animation provides an introduction to the mechanism of the FiberPort and shows how the FiberPort can be used as a collimator.

Alignment Procedures

All FiberPorts contain a lens cell magnetically attached to a tilt plate that can be adjusted directly in the X and Y directions. Tip/Tilt adjustments along the optical axis are made by incremental adjustments of the Zθ adjusters, marked Zθ1, Zθ2, and Zθ3. These adjusters actuate the tilt plate. Translation in the Z-axis is made by uniformly turning the Zθ adjusters. We recommend using a low-power, visible alignment laser in all of the following adjustments.FiberPort X-Y Adjustment
The sections below provide recommendations on how to use your FiberPort based on your application. Regardless of application, the Prealignment section should be read first. Please note that your FiberPort comes collimated for a specific wavelength as provided in their mechanical drawings, which can be found below by clicking on the red document icon:. After prealigning your FiberPort, the Collimating with a FiberPort section provides instructions on how to use your FiberPort as a collimator, while the Coupling into Fiber via FiberPort section provides instructions on how to couple single mode or multimode fiber using your FiberPort.

Theoretical Approximation of the Divergence Angle

The full-angle beam divergence listed in the specifications tables is the theoretically-calculated value associated with the fiber collimator. This divergence angle is easy to approximate theoretically using the formula below as long as the light emerging from the fiber has a Gaussian intensity profile. Consequently, the formula works well for single mode fibers, but it will underestimate the divergence angle for multimode (MM) fibers since the light emerging from an MM fiber has a non-Gaussian intensity profile.

The Full Divergence Angle (in degrees) is given by

Divergence Angle Equation

where MFD is the mode field diameter and f is the focal length of the collimator. (Note: MFD and f must have the same units in this equation).

Example:

When the CFC-2X-A collimator is used with a single mode fiber patch cable such as our former item P1-460A-FC-2 such that MFD = 3.3 µm and f ≈ 2.0 mm, the divergence angle is

θ ≈ (0.0033 mm / 2.0 mm)*(180/3.1416) ≈ 0.095° or 1.66 mrad.

Theoretical Approximation of the Output Beam Diameter

The output beam diameter can be approximated from 

Output Beam Diameter Equation

where λ is the wavelength of light being used, MFD is the mode field diameter, and f is the focal length of the collimator.

Example:

When the CFC-5X-C collimator (f = 4.6 mm) is used with the P1-SMF28E-FC-1 patch cable (MFD = 10.5 µm) and 1550 nm light, the output beam diameter is

(4)(1550 nm)[4.6 mm / (π · 10.5 µm)] = 0.87 mm

Theoretical Approximation of the Maximum Waist Distance

The maximum waist distance, which is the furthest distance from the lens the waist can be located in order to maintain collimation, may be approximated by:

Max Waist Distance Calculation

where f is the focal length of the collimator, λ is the wavelength of light used, and MFD is the mode field diameter.

Example:

When the CFC-2X-A collimator is used with a single mode fiber patch cable such as our former item P1-460A-FC-2 such that MFD = 3.3 µm, ≈ 2.0 mm, and λ = 488 nm, then the maximum waist distance is

(2 mm) + (2 (2 mm)2 (488 nm) / (3.1416) (3.3 µm)2) = 116 mm.

FiberPort Cage Mount FiberPort Post Mount
Cage Mounting ApplicationClick to Enlarge The CP08FP FiberPort Cage Mount is designed to center a FiberPort inside a 30 mm cage system. The CP08FP secures to the four ER rods of a 30 mm cage assembly. Four included 2-56 stainless steel socket head screws secure a FiberPort to the adapter. The CP08FP has internal SM1 (1.035"-40) threading, enabling it to be used with our extensive line of Ø1" lens tubes, and also 8-32 or M4 taps for post mounting. HCP Application
Click to Enlarge
The HCP Post Mounting Bracket has four 2-56 threaded holes for securing a FiberPort to the front plate. The bottom of the L-bracket can be easily attached to an optical table, breadboard, or post, since it has 8-32- and M4-threaded holes, as well as a 1/4" (M6) counterbored hole.
FiberPort Standard HeNe Adapter FiberPort 5/8"-32 Threaded HeNe Adapter
HCL Application
Click to Enlarge
The HCL HeNe to FiberPort Adapter attaches a FiberPort directly to the front of a HeNe laser with an industry-standard four-bolt pattern. For additional mounting options, the HCL features internal C-Mount (1.000"-32) threading, which is utilized on some lasers. All mounting screws are included. See Section 6.3 of the FiberPort manual (available as a PDF here) for details. HCL2
Click to Enlarge
The HCL2 Self-Contained HeNe to FiberPort Adapter, which features external 5/8"-32 threading, allows a FiberPort coupler to be attached directly to the threaded aperture of our self-contained HeNe lasers or any other 5/8"-32 tapped hole. A slip-plate design allows the position of the FiberPort to be shifted and locked to maximize coupling efficiency. FiberPort mounting screws are included. See Section 6.3 of the FiberPort manual (available as a PDF here) for details.
FiberPort and FiberBench
Cage Mounting Application
Click to Enlarge
Thorlabs' fiber-to-fiber U-Benches consist of a FiberBench base combined with two FiberPorts. The U-Benches allow for easy access to the optical beam and are ideal for fiber-to-fiber applications that incorporate multiple components and require the utmost in stability. Thorlabs offers a complete line of optical subassemblies that can be placed into the beam path. We also offer our FiberBenches bundled with two compatible FiberPorts.

Fiber Collimator Selection Guide

Click on the collimator type or photo to view more information about each type of collimator.

Type   Description
Fixed FC, APC, or SMA Fiber Collimators Fixed SMA Fiber Collimator These fiber collimation packages are pre-aligned to collimate light from an FC/PC-, FC/APC-, or SMA-terminated fiber. Each collimation package is factory aligned to provide diffraction-limited performance for wavelengths ranging from 405 nm to 4.55 µm. Although it is possible to use the collimator at detuned wavelengths, they will only perform optimally at the design wavelength due to chromatic aberration, which causes the effective focal length of the aspheric lens to have a wavelength dependence.
Air-Spaced Doublet, Large Beam Collimators Air-Spaced Doublet Fiber Collimator For large beam diameters (Ø6.6 - Ø8.5 mm), Thorlabs offers FC/PC, SMA, and FC/APC air-spaced doublet collimators. These collimation packages are pre-aligned at the factory to collimate a laser beam propagating from the tip of an FC or SMA-terminated fiber and provide diffraction-limited performance at the design wavelength.
Adjustable Fiber Collimators Adjustable Fiber Collimator These collimators are designed to connect onto the end of an FC/PC or FC/APC connector and contain an AR-coated aspheric lens. The distance between the aspheric lens and the tip of the FC-terminated fiber can be adjusted to compensate for focal length changes or to recollimate the beam at the wavelength and distance of interest.
Zoom Fiber Collimators Zoom Fiber Collimator These collimators provide a variable focal length between 6 and 18 mm, while maintaining the collimation of the beam. As a result, the size of the beam can be changed without altering the collimation. This universal device saves time previously spent searching for the best suited fixed fiber collimator and has a very broad range of applications. They are offered with FC/PC, FC/APC, or SMA905 connectors with three different antireflection wavelength ranges to choose from.
Large Beam Fiber Collimators large beam collimators Thorlabs' Large-Beam Fiber Collimators are designed with an effective focal length (EFL) of 40 mm or 80 mm over three different wavelength ranges and are available with FC/PC or FC/APC connectors. A four-element, air-spaced lens design produces a superior beam quality (M2 close to 1) and less wavefront error when compared to aspheric lens collimators. As a result, these collimators are very flexible; they can be used as free-space collimator or coupler. They may also be used over a long distance in pairs, which allows the free-space beam to be manipulated prior to entering the second collimator and may be useful in long-distance communications applications.
FiberPorts Fiberport Fiber Collimator These compact, ultra-stable FiberPort micropositioners provide an easy-to-use, stable platform for coupling light into and out of FC/PC, FC/APC, or SMA terminated optical fibers. It can be used with single mode, multimode, or PM fibers and can be mounted onto a post, stage, platform, or laser. The built-in aspheric or achromatic lens is available with three different AR coatings and has five degrees of alignment adjustment (3 translational and 2 pitch). The compact size and long-term alignment stability make the FiberPort an ideal solution for fiber coupling, collimation, or incorporation into OEM systems.
Triplet Collimators Triplet Fiber Collimator Thorlabs' High Quality Triplet Fiber Collimation packages use air-spaced triplet lenses that offer superior beam quality performance when compared to aspheric lens collimators. The benefits of the low-aberration triplet design include an M2 term closer to 1 (Gaussian), less divergence, and less wavefront error.
Reflective Collimators Reflective Fiber Collimator Thorlabs' metallic-coated Reflective Collimators are based on a 90° off-axis parabolic mirror. Mirrors, unlike lenses, have a focal length that remains constant over a broad wavelength range. Due to this intrinsic property, a parabolic mirror collimator does not need to be adjusted to accommodate various wavelengths of light, making them ideal for use with polychromatic light. Our reflective collimators are ideal for single-mode fiber.
Pigtailed Collimators Pigtailed Fiber Collimator Our pigtailed collimators come with one meter of either single mode or multimode fiber, have the fiber and AR-coated aspheric lens rigidly potted inside the stainless steel housing, and are collimated at one of six wavelengths: 532, 830, 1030, 1064, 1310, or 1550 nm. Although it is possible to use the collimator at any wavelength within the coating range, the coupling loss will increase as the wavelength is detuned from the design wavelength.
GRIN Fiber Collimators GRIN Fiber Collimator Thorlabs offers gradient index (GRIN) fiber collimators that are aligned at a variety of wavelengths from 630 to 1550 nm and have either FC terminated, APC terminated, or unterminated fibers. Our GRIN collimators feature a Ø1.8 mm clear aperture, are AR-coated to ensure low back reflection into the fiber, and are coupled to standard single mode or graded-index multimode fibers.
GRIN Lenses GRIN Lens These graded-index (GRIN) lenses are AR coated for applications at 630, 830, 1060, 1300, or 1560 nm that require light to propagate through one fiber, then through a free-space optical system, and finally back into another fiber. They are also useful for coupling light from laser diodes into fibers, coupling the output of a fiber into a detector, or collimating laser light. Our GRIN lenses are designed to be used with our Pigtailed Glass Ferrules and GRIN/Ferrule sleeves.

Posted Comments:
mfernholz  (posted 2018-07-30 15:50:49.69)
Dear Madam or Sir, I recently acquired the predecessor of the PAF2-A4A, the PAFA-X-4-A. I happened to have lost the locking screw, which should be a 0-80, 0.050" screw. Unfortunately, neither the length, nor whether the end is coated in rubber was stated in the manual and hence replacement has been difficult (also, since this is an imperial screw and I work in Europe). Is there a way to supply me with a replacement for the locking screw of the PAFA-X-4-A (I assume the screws remained the same for the PAF2-A4A)? If you need further information, please feel free to contact me. Best regards, Martin Fernholz
YLohia  (posted 2018-08-02 11:36:22.0)
Hello Martin, thank you for contacting Thorlabs. These are actually #0-80 x 1/4" socket head cap screws and are not rubber-coated. For quotes on any custom items or component parts, please contact your local Thorlabs Tech Support (europe@thorlabs.com). We will reach out to you directly with a quote for the replacement screws.
caozengle  (posted 2018-05-23 10:37:54.243)
Hi, I want to know if bulkheads of different models are exchangable. I have a PAF2P-11A (11 mm, PC) and a broken PAF-X-15-A (old model, 15 mm, APC), I simply changed PAF2P's PC bulkhead with the APC one and happily to found it works well. I want to know if APC (or PC) bulkheads of 11 mm and 15 mm models are exactly the same, also are APC and PC bulkheads exchangable with the same focal length.
nbayconich  (posted 2018-05-24 09:15:16.0)
Thank you for contacting Thorlabs. Yes the bulkheads for the 11mm & 15mm FC/PC fiberports are the same type so these can be interchanged. The bulkheads of the 11mm & 15mm FC/APC fiberports can also be switched with one another. The bulkhead used in a fiberport will be determined by the focal length, all bulkheads in fiberports with focal lengths of 2-7mm are interchangeable. Fiberports with focal lengths of 11-18mm will use a different set.
saurabh.raj  (posted 2018-04-12 14:46:09.737)
What would be the best coupler for a fiber with FC/AFC end? I have searched your webpage, but can't find couplers for AFC fibers.
YLohia  (posted 2018-04-12 11:18:46.0)
Hello, thank you for contacting Thorlabs. There is no such thing as an FC/AFC connector for fibers. Perhaps you mean FC/APC? If that is the case, we have many APC compatible couplers on this page. I have reached out to you directly to discuss your application further.
user  (posted 2018-04-07 17:17:20.013)
I don't like that the new fiber port has both metric and SAE screws. It sucks to strip out a screw because I forgot they are different, and used the closest sized wrong allen wrench. It would be nice if there was consistent hardware, either all metric or all SAE.
nbayconich  (posted 2018-04-10 05:34:03.0)
Thank you for your feedback. Our apologies for the inconvenience this may have caused, please note that all adjusters for these fiberports use imperial hex keys.
TCampbell  (posted 2018-04-04 11:31:30.037)
A note from Tim at Thorlabs: As an update to the previous comment, please note that a new generation of FiberPort Collimators were released on March 20, 2018. For more information on the new design, please see the tabs above. We look forward to hearing feedback on the improved features!
david.lavan  (posted 2018-02-21 14:54:56.21)
This may be the worst product Thorlabs sells. Between arriving missing a spring, and being almost impossible to adjust to generate a signal with a SM fiber, it is a a sure fire way to turn thousands of dollars of lab time into vapor.
nbayconich  (posted 2018-03-01 02:48:36.0)
Thank you for your honest feedback. The design of these FiberPort collimators is outdated, and in an effort to make them more compact, significant crosstalk arose. We will be shortly releasing a new version of our FiberPort collimators, the new design will mitigate positioning errors from hysteresis, and over travel of the Z axis. Some improved features of our new FiberPort collimators will include M2X0.2 fine adjusters and will no longer have plunger screws to provide a counterforce against the adjuster screws but will contain retention springs to provide counterforce. I will reach out to you directly to discuss performance changes.
tanmaybhwmk3  (posted 2017-10-25 23:14:45.83)
What is the damage threshold for the product "PAF-X-7-A"? Can I use it for 800 mW CW 532 nm laser with Multimode fibre?
tfrisch  (posted 2017-10-30 12:11:44.0)
Hello, thank you for contacting Thorlabs. The maximum power that can be used in a FiberPort will depend on many factors. Whether it is used for collimating out of fiber or coupling into fiber, overfilling the lens or fiber will expose epoxy to high power, and that will likely be the limiting factor. I will reach out to you to discuss your application, but in general, it is best to align the system at low power and increase power only once the transmission is maximized.
user  (posted 2017-09-01 16:58:35.093)
Hello, I have a question concerning the waist at the collimator output and the MFD : I want to use a PAF-X-11-C and a P3-1064PM-FC. Using the given formula at 1064nm I get : d = 4*(1064nm)*11mm/(pi*7.7µm) = 1.9 mm Is this correct ? Can I take whatever fiber (i.e. MFD) I want ?
tfrisch  (posted 2017-09-15 10:12:20.0)
Hello, thank you for contacting Thorlabs. The calculation of beam diameter you give above looks correct for a diffraction model of the propagating light. The geometric model would give the diameter as roughly 2*f*NA of the fiber, and though these are not equivalent, they are both widely used definitions. The MFD of a fiber will be dependent both on the wavelength of the light and the core geometry, so changing the fiber will slightly change the above parameters. Please contact TechSupport@Thorlabs.com to discuss this in detail.
user  (posted 2017-09-01 15:33:48.323)
Hello, I will need 3 collimators : PAF-X-11-C PAF-X-5-C PAF-X-5-A but I need them vacuum compatible down to 10^-7 mbar, is this possible ? If not do you propose vacuum compatible collimators ?
tfrisch  (posted 2017-09-15 09:47:09.0)
Hello, thank you for contacting Thorlabs. We would love to discuss the needs of your application through TechSupport@Thorlabs.com. We look forward to hearing from you.
inzenith  (posted 2017-06-21 17:56:35.43)
Hello, I need collimator or lens for collimating and focusing purpose (broadband wavelengths 400-1000) in Fiber Optics, What do you recommend?
tfrisch  (posted 2017-06-27 01:27:38.0)
Hello, thank you for contacting Thorlabs. You may want to consider a reflective collimator for broadband performance. I will reach out to you directly about your application. https://www.thorlabs.us/newgrouppage9.cfm?objectgroup_id=4093
tfrisch  (posted 2017-06-27 01:27:38.0)
Hello, thank you for contacting Thorlabs. You may want to consider a reflective collimator for broadband performance. I will reach out to you directly about your application. https://www.thorlabs.us/newgrouppage9.cfm?objectgroup_id=4093
inzenith  (posted 2017-06-21 17:53:32.417)
Hello, I need collimator or lens for collimating and focusing purpose in Fiber Optics, What do you recommend?
tfrisch  (posted 2017-06-27 01:23:12.0)
Hello, thank you for contacting Thorlabs. It looks like you have posted a duplicate request where you elaborate that your source is broadband. You may want to consider a reflective collimator. I will reach out to you about your application.
bw  (posted 2017-03-30 13:59:08.19)
What is the purpose of the captan tape on the fiber port's face? My intuition is to remove this prior to installation and use; however, there is no mention of it in your documentation and there is no illustration of the face side. It is good that you documented the alignment options; but if removing this tape ruins the port, that fact should also be documented.
tfrisch  (posted 2017-03-31 04:38:30.0)
Hello, thank you for contacting Thorlabs. This tape can be removed. I have passed your feedback on to our Fiber Team.
diemel  (posted 2017-02-17 05:10:45.607)
Is there data available for the focal shift of the PAF-X-4-E?
tfrisch  (posted 2017-02-17 09:27:18.0)
Hello, thank you for contacting Thorlabs. I will reach out to you directly with details on the component lens (390036).
schaefer  (posted 2016-11-30 11:22:45.46)
Hi! I have a question about the fiber ports PAFA-X-4-A and PAFA-X-4-B: Can I just change the bulkhead to SMA to use it with SMA fibers? And if so can I buy those separately? thanks!
tfrisch  (posted 2016-11-30 01:55:28.0)
Hello, I have contacted you directly about the quantity of bulkheads you need. We will have a quote sent to you.
user  (posted 2016-10-17 17:28:15.953)
To couple out put of each HeNe into single mode fiber, can you put a list of suitable part numbers at somewhere in a tab also coupling ratio, too?
jlow  (posted 2016-10-18 04:17:49.0)
Response from Jeremy at Thorlabs: This would depend on the beam size from your HeNe and also on the fiber that you are using. For a typical HeNe with around 0.8mm beam diameter and a typical SM fiber with about 4µm MFD, the PAFA-X-4-A would work. You can see the Selection Guide tab on how to choose the proper FiberPort. In terms of mounting the FiberPort and HeNe, it also depends on how you want to mount them (e.g. post vs. cage system). If you need help with this, you can contact us at techsupport@thorlabs.com.
CChang  (posted 2016-07-05 14:25:42.837)
Dear Thorlab I have a question about the fiber-coupled adapter, like PAF-X-7-C. Is it possible to directly replace aspherical lens with 3 mm focus lens, rather than 7 mm FL standard lens ? I can not find the standard-like fiber-coupled adapter, for example, PAF-X-3-C, from Thorlab. Can I order the 3 mm effective length of lens and insert into PAF-X-7-C adapter and do alignment by myself. Thank you very much. Chih-Hsuan Chang
cpepe  (posted 2016-03-17 11:17:03.443)
I was wondering what is the expected coupling efficiency?
besembeson  (posted 2016-03-17 01:20:36.0)
Response from Bweh at Thorlabs USA: There are several factors that affect the coupling efficiency that you get. There is the type of fiber (single mode or multimode), your wavelength, the fiberport type, the input beam diameter, the experience level of the user. So it is hard to provide an expected efficiency. You can easily get high efficiency initially when coupling into a multimode fiber compared to a single mode fiber. You can also get high efficiency if the fiber port is selected properly to match your beam characteristics. Typically you will start low, and later get better efficiency as you have a better feeling of how small adjustments affect the coupling efficiency. We also have some great notes on fiber coupling with alignment setup under the "Selection Guide" and "Operation" tab: http://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=2940 I will contact you to discuss your application.
michael-yorgidis  (posted 2016-02-23 14:59:11.017)
Hello, i wanted to ask if it is possible to order just the bulkhead with the SMA Connector. We have one of these devices (PAF-X-5-D) and want to use it with another glass fiber. best regards, Michael Yorgidis.
jlow  (posted 2016-02-29 11:42:52.0)
Response from Jeremy at Thorlabs: Yes we can sell just the bulkhead. We will contact you directly for the quote.
lauri.kurki  (posted 2015-07-23 13:41:00.847)
Do you still sell the black-anodized protection caps? Such cap was delivered along with a FiberPort I bought a couple of years back, but it seems not to be included any more (I've bought 2 more ports recently)
cdaly  (posted 2015-07-30 02:57:22.0)
Response from Chris at Thorlabs: We no longer ship the Fiberports with these black caps, but they are available upon request. We will contact you directly regarding this component.
frank.kuehnemann  (posted 2015-05-20 08:26:44.32)
Is it possible to get an achromatic fiber coupler with non-standard wavelengths ? We are looking for the 900-1300 nm range which is currently not covered by one lens. Thanks Frank
jlow  (posted 2015-08-25 11:45:51.0)
Response from Jeremy at Thorlabs: We have reflective collimators available at http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=4093 that will cover the wavelength range that you are looking for.
cacao23  (posted 2015-05-14 00:23:55.56)
How to calculate max waist distance? i hope to know the equation.
jlow  (posted 2015-05-14 11:25:55.0)
Response from Jeremy at Thorlabs: You can find the calculation at http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=4353&tabname=Calculation.
t.steinmetz  (posted 2014-10-21 22:02:28.55)
what is the damage threshold of these achromatic lenses?
jlow  (posted 2014-10-22 02:51:06.0)
Response from Jeremy at Thorlabs: These achromats are cemented doublets and are generally not used for high power applications. It would have similar damage threshold to the regular cemented doublets we sell. I will contact you directly to provide more information on this.
scholten  (posted 2014-07-02 10:45:58.833)
Sorry if I missed this in your specs, but can you please let me know the range of angular (tip/tilt)? Thanks.
myanakas  (posted 2014-07-09 10:42:14.0)
Response from Mike at Thorlabs: Thank you for your feedback. The range for the tip/tilt adjustment is approximately +/- 4 degrees, with a resolution of 1.32 degrees (23 mRad) per revolution. Based on this feedback we will be working to have this information available on the fiberPorts page by the end of the day.
gesuele  (posted 2014-06-10 06:37:45.557)
Dear Sirs Is it possible to buy a fiber port without the collimation/coupling lens? I would need it to couple directly into a spectrometer. Thanks Felice
besembeson  (posted 2014-06-12 11:41:36.0)
A Response from Bweh at Thorlabs Newton-USA: Thanks for contacting Thorlabs. It is possible to purchase the fiberport without the collimating/coupling lens but it is unclear to me if this will be useful for your application. In the fiberport, the bulkhead with fiber connector is locked to the fiberport body and this can't be adjusted under normal operations. It is the magnetic lens cell (MLC) that can be adjusted with 5 degrees of freedom. See the "Mechanism" tab at the following link please: http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=2940&pn=PAF-X-5-B I will contact you by email to clarify your application please.
martin.pfeiffer  (posted 2014-02-27 11:35:07.633)
Dear Sir or Madam, I am interested in the power damage threshold of your fiber ports with a D coating. I want to do fiber to free space coupling of max 5W of a thulium fiber laser emitting at 1.93um. Which fiber ports would be suitable? Thank you Martin Pfeiffer
pbui  (posted 2014-04-04 12:06:49.0)
We don't have any test data to show whether that power level is supported by our fiberports. However, generally, your fiber connector is more likely to be damaged before the fiberport would be damaged. If your fiber connector is capable of supporting your laser's power levels, then any of the -D coated fiberports should be able to support it as well.
ghoch  (posted 2013-10-21 07:32:09.717)
Wir haben von Ihnen die Fiber M42L05 - Ø50 µm, 0.22 NA, FC/PC-FC/PC Fiber und wollen hier einen 100mW Laser 473nm mit einem beam diameter 1,9mm x 1,4mm einkoppeln. Welcher justierbarer Connector ist da geeignet. Mit freundlichen Grüßen Gerhard Hoch InnenOhrLabor UniKlinikum Göttingen email: ghoch@gwdg.de
pbui  (posted 2013-10-28 15:04:00.0)
Response from Phong at Thorlabs: You should be able to use our Air-Spaced Doublet Collimators for coupling into the M42L05 fiber patch cord. Since you are working at a wavelength of 473 nm, you will need a custom aligned package. We will contact you directly with more details.
basili  (posted 2013-06-25 13:29:15.003)
There is a clear example provided for “Lens Selection Example - Choosing a FiberPort for Fiber Coupling” in the following link (under Selection Guide menu): http://www.thorlabs.de/newgrouppage9.cfm?objectgroup_id=2940&pn=PAF-X-15-B#2943 however at the end of example there is a warning that “ lens NA should be smaller than the NA of fiber”. There is a contradiction with this statement and proposed solution. This example uses SM600 SMF patch cable which has NA =0.12-0.14 while the solution proposed to use fiberport PAF-X-15-B which has lens NA =1.6. In addition, all the fiberports in this webpage have NA greater than 1.4 while all SMFs have NA less than or equal to 0.14. Than would you please verify this for us. Also please let us know if there fiberport/lens with NA ≤0.12 for coupling light into SMF.
zwang  (posted 2013-06-18 00:04:10.2)
What does of Divergence in your fiberport table mean?
pbui  (posted 2013-06-20 15:33:00.0)
Response from Phong at Thorlabs: The Divergence spec is defined to be the angular measure of the increase in beam diameter with distance from the lens. We use the full angle divergence equation for a Gaussian beam in the calculations in the paraxial approximation.
rajduc  (posted 2013-02-19 20:16:08.913)
I too need Zemax files in ZMX format! Can I request from technical support directly for specific components, until ThorLabs deliberates whether they will provide both zar and zmx formats?
tcohen  (posted 2013-02-21 14:58:00.0)
Response from Tim at Thorlabs: Thank you for contacting us. Our technical support team is happy to provide .zmx or .zar formats on request to techsupport@thorlabs. We are also actively working on providing this on the website.
tcohen  (posted 2013-01-17 10:31:50.603)
Response from Tim at Thorlabs: We have achromatic options available. We will contact you to discuss the performance based on your wavelengths.
tcohen  (posted 2012-10-07 11:04:00.0)
Response from Tim at Thorlabs: We can provide the optic or the magnet/optic assembly separately as a special. If you plan to use the lens with another FiberPort we would need to ensure the bulkhead will sit at an appropriate distance. I see you didn’t leave any contact information. To obtain a quote and continue this discussion please contact us at techsupport@thorlabs.com.
fdm  (posted 2012-10-06 07:16:59.0)
Is the lens used in PAFA-X-4-C available for sale separately? We already own a FiberPort but we would like to use this lens.
jlow  (posted 2012-09-27 14:19:00.0)
Response from Jeremy at Thorlabs: You could possibly make a XZ translation mount out of our regular translation stages and then put the FiberPort fitted on the HCP on it for coarse XZ adjustment. I will get in contact with you directly to discuss about the travel ranges and other constraints that you might have in your application.
jyuan  (posted 2012-09-20 17:38:08.0)
I would like to couple a free-space laser to fiber, and am thinking of mounting PAFA-X-4-A to a XZ translation mechanism (to provide coarse X-Z adjustment before fine-tuning using PAFA-X-4-A). I think this would make the adjustment easier. But the problems is I am not able to find a suitable XZ stage to couple to PAFA-X-4-A, possibly through HCP. Could you give me some suggestions? Thank you!
tcohen  (posted 2012-08-17 12:04:00.0)
Response from Tim at Thorlabs: The coupling efficiency depends on a few factors. When mounted to a FB-38 or FB-51 FiberBench, you should be able to get around 1dB IL. In your case, symmetry between the optics and fiber will allow favorable results in coupling. Please always ensure the cleanliness of your components. You didn’t mention whether there are optics or other components in the beam path. A sketch showing the PAF separation and other elements in the beampath would be helpful to continue this discussion and I will contact you to discuss your setup with you directly.
scottie730318  (posted 2012-08-15 19:14:38.0)
Dear Sir: I have bought two fiber ports (PAFA-X-4-C) to collimate and focus the light. The one is collimating the light from the Hi-1060 fiber. Another one is focusing the collimating light into the Hi-1060 fiber. The connector of single mode fiber (Hi-1060) is the FC/APC. I have already fine tune the fiber port of collimator and focusing to get the max. coupling efficiency. However, the loss between the two collimator/focusing fiber ports is about 2.1 dB. What value is the max. coupling efficiency? And How can I to improve the coupling efficiency? Thank you very much.
phkloth  (posted 2012-08-02 18:15:39.0)
What kind of beam diameter is meant in your selection guide. The 1/e or the 1/e^2? Thanks for your response.
jlow  (posted 2012-08-02 12:09:00.0)
Response from Jeremy at Thorlabs: The beam diameter is defined by 1/e^2.
tcohen  (posted 2012-05-29 10:22:00.0)
Response from Tim at Thorlabs: Thank you for contacting us! The max waist distance will increase as wavelength increases. However, it is also a function of the fiber used. Assuming the PAF-X-2-C is used at 1060nm with an input MFD of 10.4um, we have zmax = f + [(2)(f^2)(lambda)]/[(pi)(MFD^2)] ~ 27mm.
scottie730318  (posted 2012-05-27 02:33:30.0)
What distance is the max waist distance (PAF-X-2-C ) with about 1060 nm ?
tcohen  (posted 2012-05-08 09:49:00.0)
Response from Tim at Thorlabs: We have our Zemax documentation on the web as .zar because this allows us to include more information than with a standard .zmx file. I have contacted you to provide the associated .zmx file.
martin.vogel  (posted 2012-05-07 19:06:40.0)
Hello, can you please repost the lens prescription in ZMX format? Zemax archive files (ZAR) are not read by most other optical design software. Many thanks
tcohen  (posted 2012-05-01 11:58:00.0)
Response from Tim at Thorlabs: Thank you for your feedback! We are looking into being able to offer this option. I will contact you to keep you updated in the process.
marcel.rattunde  (posted 2012-04-26 20:46:27.0)
is there a possibility to get a fiber port for the 1800 - 2400nm range (D coating) also for an SMA connector ? so far you have in this range only FC/PC or FC/APC couplers ?
jjurado  (posted 2011-08-19 09:34:00.0)
Response from Javier at Thorlabs to willtalmadge: Thank you for contacting us. They are a few parameters to consider in order to choose the most appropriate fiberport. To determine the required focal length of the coupling lens, it is necessary to take into account the beam diameter of the input beam and the modefield diameter of the fiber, which is 3.5um (+/- 0.5um) at 515 nm for the 460HP fiber used in the P1-460A-FC-5 cable(see Fiber Coupling tab: http://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=3810). It is recommended to focus your spot to approximately 70-80% of the core size in order to optimize the coupling efficiency. It is also important in most cases to match the numerical of both the lens and the fiber in order to prevent coupling into the cladding of the fiber. I will contact you directly for further support.
willtalmadge  (posted 2011-08-18 13:41:21.0)
I need some assistance selecting a fiber port that is optimally matched to the fiber cable P1-460A-FC-5 to be used for coupling a 514.5 nm free space laser into the fiber. A recommendation on which fiber port one would use would be best.
jjurado  (posted 2011-08-18 10:18:00.0)
Response from Javier at Thorlabs to p.edmunds: We are currently working on an update to the manual of our fiberport collimators which contains detailed instructions for aligning and optimizing the collimation and coupling of light in fiber systems. This manual will be available on the web within the next week. I will contact you directly for further support.
p.edmunds  (posted 2011-08-16 14:34:12.0)
In a similar vein to the comments before, Ive found that the SHCS no longer respond linearly to changes made to the screws & indeed there seems to be a lot of hystereses involved. This has happened on several different fiberports that my group has bought-it seems as if they can only handle being aligned a couple of times. Is it really necessary to disassemble and put the fiberport back together again? Some more detailed instructions on this than are listed in the manual would be appreciated.
jjurado  (posted 2011-03-22 18:18:00.0)
Response from Javier at Thorlabs to benju: Thank you for submitting your inquiry. The fiberport collimators/couplers have several advantages over a "microcage" system using the components you mentioned: - The fiberport allows for tip and tilt adjustability in addition to x, y and z (along the optical axis of the lens), which helps optimize coupling. An assembly using the SM1Z coupled to the HPT1 or CP1XY does not have this feature. - The majority of the mechanical components used in the fiberport are manufactured with stainless steel, which is more thermally stable than aluminum. - The components of the fiberport are built with tighter tolerances, which allow for precise positioning. - The fiberport can be locked to secure the adjustment settings. I will contact you directly for further assistance.
benju  (posted 2011-03-21 20:17:12.0)
Hi, could you please get back to me regarding the stability of the fiberport compared to e.g. an assembly of separate xy and z translator in a microcage system (e.g. SM1Z + CP1XY/HPT1)?
jjurado  (posted 2011-02-15 16:01:00.0)
Response from Javier at Thorlabs to tangcheng: Thank you for contacting us with your request. The manual for the fiberports contains detailed instructions for disassembling and reassembling the device. You can use these instructions to gain access to the spring. After continuous use, it is possible for the spring to become damaged, over bent, or improperly seated. If necessary, we can replace the spring for you. You can find a copy of the manual via the following link: http://www.thorlabs.com/Thorcat/16100/16137-D02.pdf
tangcheng  (posted 2011-02-14 18:30:07.0)
I have similar problem of loss of spring tension. Could you send me the instructions on readjusting the spring? Thank you.
Thorlabs  (posted 2010-11-03 15:54:02.0)
Response from Javier at Thorlabs to Scott and Iddo: Thank you for your feedback. It is possible that the leaf spring has lost tension. However, before making this assumption, I would suggest making sure that the locking screw located on the side of the fiberport is not threaded in, as it would limit the x/y travel of the lens. If loosening the locking screw does not help with the x/y travel, then you could disassemble the fiberport and readjust the leaf spring (or we could do that for you, if you prefer). I will send you instructions and pictures for doing this.
scott  (posted 2010-11-03 16:21:28.0)
I have a similar problem as the previous poster. I dont think the leaf spring is broken but the lens cell only moves over a fraction of the original x/y adjustment range. It seems as if either the spring has lost tension and cannot push the cell any further now, or the fraction of the cell inside the cage has increased over time. Is there any way to get the full travel range in x/y back as the collimator is pretty much unusable in its current state?
Thorlabs  (posted 2010-11-03 09:17:38.0)
Response from Javier at Thorlabs to bmills: you can optimize the collimation by adjusting the three socket head cap screws (SHCS)located on the connector side of the fiberport. Adjusting all three screws allows you to control the distance between the tip of the fiber and the lens by +/- 0.4 mm. Please refer to the "Mechanism" tab for more information.
iddo.pinkas  (posted 2010-11-03 13:25:12.0)
Dear Sir/Madam, I have had this product for over a year. I believe that the counter spring on the XY controls has broken, as I dont have any continuous motion of either axis when trying to align the light into the fiber. Is there a way to replace this spring? Best regards, Iddo
iddo.pinkas  (posted 2010-11-03 13:24:18.0)
Dear Sir/Madam, I have had this product for over a year. I believe that the counter spring on the XY controls has broken, as I dont have any continuous motion of either axis when trying to align the light into the fiber. Is there a way to replace this spring? Best regards, Iddo
bmills  (posted 2010-11-02 18:25:28.0)
Is the focus of the lens in the fiberport device adjustable? i.e. - is the collimation adjustable of you were collimating the light coming out of a fiber?
Thorlabs  (posted 2010-09-22 17:56:07.0)
Response from Javier at Thorlabs to mdmalik01: Our fiberports are certainly compatible with the 460HP fiber and your 532 nm HeNe laser. The distance between the lens and the tip of the fiber can be adjusted in order to compensate for the chromatic focal shift of the aspheric lens used. I will contact you directly to discuss your application.
mdmalik01  (posted 2010-09-21 14:53:36.0)
I was looking at your fiber ports and thought they would be a good idea for our green HeNe laser, but the single mode fiber you offer (460HP) requires a f=2.93mm lens, which is not even an option for your fiber ports -- so my question is: how do you guys expect a customer to use both your fiber and fiber ports for anything that is green and has a 0.7mm 1/e^2 diameter? It looks like you are forcing us to go somewhere else for fiber launching in green.
Thorlabs  (posted 2010-09-10 17:37:44.0)
Response from Javier at Thorlabs to tommy.e.drake: Yes we do. Click on the "D" (documents) icon next to the part number, and you can download the solidworks model for the fiberport. I will also send this file to you.
tommy.e.drake  (posted 2010-09-09 16:08:55.0)
Do you have a solid model for the PAF-SMA-7-A?
Thorlabs  (posted 2010-08-31 11:11:44.0)
Response from Javier at Thorlabs to last poster: The body of all fiber ports are now manufactured with notches on all four corners to allow them to slide along the rods of the 30 mm cage system. We will update the photos on the web shortly. The SHCS acronym refers to the Socket Head Cap Screws. We will add the definition to the manual.
user  (posted 2010-08-31 06:44:14.0)
On these fibre couplers why dont you nip off the corners of the back plate so they can slide on you rail systems? As it is they have to be placed on the ends of the rails which removes a useful degree of freedom when building your systems. I can see no reason why not to do this. Another point is the documentation relies on the acronym SHCS which is not defined at the point of first use nor defined on the diagram. This is very annoying!
Adam  (posted 2010-03-30 11:20:58.0)
A response from Adam at Thorlabs to Jim: We would suggest using this fiberport for coupling light into a 200um fiber. This fiberport can be used to help collect the light from 200um core fibers, but the light will not be well collimated. The light is not collimated well out of multimode fiber because the light behaves as a multimode point source and is not symmetric around the optical axis. This also makes it rather difficult to predict the diameter coming out of the fiber. I would like to get more information about the exact fiber you are using to see what information we can provide.
Jim.Thieser  (posted 2010-03-30 10:04:25.0)
Hi, i have a short question. Can I use this fiber port with a 200 µm fibre? and how large is the beam diameter outcoming of that fiber port with this fibre attached? thanks Best regards Jim Thieser
apalmentieri  (posted 2010-01-21 13:07:12.0)
A response from Adam at Thorlab to b.steel1: At this point in time, the correct information can be found on the website. We are working to get our stock up to V20 standards and the infomration in the catalog will be correct within the next month. I will email you directly to find out the exact fiberport you are working with.
b.steel1  (posted 2010-01-21 05:38:03.0)
The ranges of the AR coatings listed on the website and in the catalogue do not match. Eg, coating A is listed as 400-600nm on the website and 400-700nm in the catalogue. I am coupling a 633nm laser, and the website implies I should use coating B, but the AR coatings graph in the catalogue suggests coating A would be preferable.
klee  (posted 2009-10-23 18:24:56.0)
A response from Ken at Thorlabs to tnakai: We will be shipping these with a quick reference guide going forward. The full 16-page manual can be downloaded from this page.
tnakai  (posted 2009-10-23 03:06:33.0)
The vol.20 catalog still says the alignment instructions are included, but it has never happened so far.
apalmentieri  (posted 2009-09-18 21:07:57.0)
A response from Adam at Thorlabs: I am sorry for the confusion on the MFD. The MFD we provide is just an example of the type of fiber that can be used with the fiberport. The fiberports do not have to be used with the MFDs we specify, they can be used with other MFDs. I will make sure our Technical marketing department makes this more apparent on the website. As per your last sentence, you are correct that those three specifications depend on the fiber/fiberport combination. Please note that all of the specifications found on our website are based off of the MFD we specify for each fiberport.
mathieu.perrin  (posted 2009-09-18 16:46:45.0)
I really dont understand how you can define an Input MFD for these fiberports and think there is a bug in your specs. To be more specific, for part PAF-X-5-C (numerical aperture = 0.53), you quote an Input MFD of 10.4µm in your Spec tab. If I connect a large mode area fiber, such as LMA-35, which has a Mode Field Diameter of 26µm, I guess the MFD will be larger than 10.4µm. If instead I connect a fiber such as UHNA4, which has a Mode Field Diameter of 4µm, I would say the MFD will be smaller than 10.4µm. To me, the MFD will depend on the fiber used, but you specify an Input MFD value for the fiberports. So I figured it is the achievable beam waist for a beam incident on the fiberport lens. Due to diffraction, this should depend on the numerical aperture of the lens, but for part PAF-X-18-C (numerical aperture = 0.15), you quote the exact same Input MFD of 10.4µm, as for all fiberports with the C coating. I think there is a bug in your specs. I also have some trouble understanding the "Output Waist Dia." parameter, the "Max Waist Dist." parameter and the "Divergence" parameter of the fiberport, as they seem related to a particular fiberport+fiber combination.
klee  (posted 2009-09-11 16:14:36.0)
A response from Ken at Thorlabs to ieu.perrin: The Input MFD does not depend on the AR coating. It depends on the fiber used to emit a single mode (approximately a Gaussian intensity profile) from the fiber used at a particular wavelength to calculate the other values.
mathieu.perrin  (posted 2009-09-10 18:51:33.0)
The Input MFD (mode field diameter) depends only on the AR coating used. How is this quantity defined? If this is the waist of a gaussian beam focused by the lens, why is it independent of the numerical aperture?
Tyler  (posted 2009-03-25 14:21:08.0)
A response from Tyler at Thorlabs to oscar.frasciello: The coupling efficiency is dependent on many factors including things like the input beam diameter, wavelength of light, fiber type, etc, so it is not possible to provide an absolute number. The FiberPort alignment mechanism does not impose a limit on the coupling efficiency so if you would expect 50% coupling efficiency using a more traditional alignment stage then you can expect to get the same performance from the FiberPort. However, since the 5 adjustment axes are coupled, there is a knack to achieving optimum alignment. We will contact you via email to collect more information on your setup so that we can provide specific recommendations on how to proceed. If you have any further questions, please continue to submit them.
oscar.frasciello  (posted 2009-03-24 12:34:30.0)
Id like to know wich is the mean power loss for PAF-X-7-A fiberport coupling into a single mode fiber. Im not able to reach a power coupling of more than 10%. Thanks for support
rdrullinger  (posted 2009-02-18 10:28:26.0)
re the fiber collimator, PAF-x-xx, an exploded view with part labels would sure be useful. You obviously never had a user not previously in the know about these things go over your documentation.
Tyler  (posted 2009-01-26 12:19:31.0)
A response from Tyler at Thorlabs to dgray: A member of our technical support department contacted you with a quote, but the short answer is yes. In fact, there are instructions in the FiberPort manual about how to disassemble the FiberPort in case the user wishes to swap the aspheric lens element. If you have any further questions, please continue to submit them.
dgray  (posted 2009-01-14 04:34:03.0)
Can you supply the fiber aligment port without a lens infront?
jpang  (posted 2008-10-27 11:42:43.0)
IF question is when you adjust the 3 Z screws equally does the pointing vector change, this answer is "it depends". For FC straight polished fiber with lens properly XY positioned relative to the fiber and the lens not tilted the beam angular pointing vector will change only slightly. As you can imagine if you have lens off center but tilted you can steer the beam to a given center line point. Likewise you can have beam hit a point on a target with several different lens position combinations. The XY adjustment of 1/50 turn of the 0-80 screw results in very LARGE beam steering change so I assume this was not the question. If you are looking for a varifocus collimator in which only "collimation" divergence changes with a single adjustment then the fiberport PAF is not good for this requirement. For this you need straight or PC polished fiber sliding in a tube. So a kit could be a CFS-T-xx that is not bonded (fiber and lens tube not bonded), you could move fiber in and out to adjust divergence with very little beam deviation.
dgray  (posted 2008-10-23 10:12:54.0)
Fiberport collimators: as the lens is moved in this alignment, in practice does this change the pointing of the collimated laser beam with respect to the mounting flange?
Tyler  (posted 2008-10-17 15:21:12.0)
A response from Tyler at Thorlabs to lsandtrom: The travel range of the aspheric lens in the X and Y directions is ± 0.7 mm but when the FiberPort is used in a standard collimation/coupling application only a small portion of this translation range is used. The Z (optical axis) translation range is ± 0.4 mm for a given position of the plunge screws. The plunge screws can translate the + extreme of the travel range in the Z direction over a distance of 2 mm. Thank you for submitting your question. We have added this information to the product presentation under the "Mechanism" tab. If you have any further questions, please feel free to ask.
lsandstrom  (posted 2008-10-16 05:36:38.0)
How much can the internal lens be adjusted in x, y, and z from its nominal position?
Laurie  (posted 2008-04-16 08:57:56.0)
Response from Laurie at Thorlabs to unknown poster: All of our FiberPorts will function (i.e. work with no damage to the unit) with any fiber. However, we advice caution in choosing a fiber/connector/FiberPort Combination. Some FiberPorts will not be ideally suited for every fiber type and application. If you need technical assistance choosing the correct FiberPort for your application, please contact Customer Support at techsupport@thorlabs.com or call your local office (the number is located at the bottom of the page). Thank you for your interest in our products!
user  (posted 2008-04-16 08:09:27.0)
item description says "for SM/MM/PM". does one item work with all three or do i need to specify which fiber i use when ordering?
technicalmarketing  (posted 2007-11-06 15:16:42.0)
Yes, jweston, we have a typo concerning the units and will fix that. Thank you for the catch and your interest in our products.
jweston  (posted 2007-11-05 13:38:56.0)
TESTING units for input MFD should probably be micrometers like in the catalog !!?? regards, Anders Wallin
acable  (posted 2007-10-31 18:53:08.0)
Can you provide a photo of this device being used on an actual laser. It would also be better if the photo of the product was positioned next to the price box, you show 6 different photos of the FiberPort, only have 5 different models listed, which really seem to net down to 3 different models because one model is offered with 3 different wavelength ranges. Also why all the part numbers at the top of the page, you show 12 different part numbers but only offer pricing on 5.

Achromatic FiberPorts for FC/PC and FC/APC Connectors (EFL = 4.0 mm)

Fiberport Collimator Focal Length Shift Comparison
Click to Enlarge

Comparison of Focal Shifts in Achromatic and Aspheric FiberPorts
(350 - 700 nm Versions Shown)
  • Achromatic Lens Collimates Over a Range of Wavelengths
  • Small Focal Length Shift Over the Specified Wavelength Range
  • Ideal for Laser-Based Fluorescence Experiments
  • FC/PC- and FC/APC-Compatible

Our Achromatic FiberPorts collimate light over a large wavelength range with a very small focal length shift. This reduces the need for realignment if the wavelength of the source is changed. The focal length shift for both the achromatic and similar aspheric FiberPorts can be seen in the plot to the right. The effective focal shift for each achromatic FiberPort can be seen by clicking on the links in the table below. These FiberPorts can be used with both FC/PC and FC/APC connectors, as their 5-axis adjustment combined with its short focal length leads to negligible sensitivity to off-axis input. 

Item # EFL Input
MFDa,b
Output 1/e2
Waist Diametera
Max Waist Distancea,c Divergencea EFL Shifta,d
(Click for Plot)
Lens Characteristics Length Lg
CAe NA AR Rangef Material
(Click for Plot)
PAF2-A4A 4.0 mm 3.5 µm 0.65 mm 378 mm 0.875 mrad 8.3 µm 1.8 mm 0.22 350 - 700 nm N-SK16 /
N-LASF9
0.70" (17.7 mm)
PAF2-A4B 4.0 mm 5.0 µm 0.87 mm 350 mm 1.250 mrad 6.9 µm 1.8 mm 0.22 600 - 1050 nm N-LAK22 /
N-SF6HT
0.70" (17.7 mm)
PAF2-A4C 4.0 mm 10.4 µm 0.76 mm 150 mm 2.600 mrad 14.8 µm 1.8 mm 0.22 1050 - 1620 nm N-SF66 /
N-LASF41
0.70" (17.7 mm)
  • These values are calculated using the following equipment: -A: 460HP at 450 nm, -B: 780HP at 850 nm, -C: SMF-28e+ at 1550 nm
  • Input Mode Field Diameter
  • Maximum Waist Distance is defined as the maximum distance from the lens a Gaussian beam's waist can be placed.
  • Focal length shift is specified over the entire AR coating wavelength range.
  • Clear Aperture
  • Wavelength range of the antireflection coating. See the Graphs tab for details.
  • The length from the tip of the connector bulkhead to the face of the FiberPort flange, as shown in the diagram in the Operation tab.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
PAF2-A4A Support Documentation
PAF2-A4AAchromatic FiberPort, FC/PC & FC/APC, f = 4.00 mm, 350 - 700 nm, Ø0.65 mm Waist
$590.17
3-5 Days
PAF2-A4B Support Documentation
PAF2-A4BAchromatic FiberPort, FC/PC & FC/APC, f = 4.00 mm, 600 - 1050 nm, Ø0.87 mm Waist
$590.17
Lead Time
PAF2-A4C Support Documentation
PAF2-A4CAchromatic FiberPort, FC/PC & FC/APC, f = 4.00 mm, 1050 - 1620 nm, Ø0.76 mm Waist
$590.17
Today

Aspheric FiberPorts for FC/PC and FC/APC Connectors (EFL 7.5 mm or less)

FiberPorts with an effective focal length of ≤7.5 mm can be used with both FC/PC and FC/APC connectors, as the 5-axis adjustment combined with the short focal length leads to a negligible off-axis output.
Item # EFL Input MFDa,b Output 1/e2
Waist Diametera
Max Waist
Distancea,c
Divergencea Lens Characteristics Length Lf
CAd NA AR Rangee Material
PAF2-2A 2.0 mm 3.5 µm 0.33 mm 96 mm 1.750 mrad 2.0 mm 0.50 350 - 700 nm ECO-550 0.70" (17.7 mm)
PAF2-2B 2.0 mm 5.0 µm 0.43 mm 89 mm 2.500 mrad 2.0 mm 0.50 600 - 1050 nm ECO-550 0.70" (17.7 mm)
PAF2-2C 2.0 mm 10.4 µm 0.38 mm 38 mm 5.200 mrad 2.0 mm 0.50 1050 - 1620 nm ECO-550 0.70" (17.7 mm)
PAF2-4E 4.0 mm 14.80 µm 1.17 mm 162 mm 3.700 mrad 5.0 mm 0.56 2.0 - 5.0 µm Black Diamond-2 0.70" (17.7 mm)
PAF2-5A 4.6 mm 3.5 µm 0.75 mm 499 mm 0.761 mrad 4.9 mm 0.53 350 - 700 nm H-LAK54 0.70" (17.7 mm)
PAF2-5B 4.6 mm 5.0 µm 1.00 mm 463 mm 1.087 mrad 4.9 mm 0.53 600 - 1050 nm H-LAK54 0.70" (17.7 mm)
PAF2-5C 4.6 mm 10.4 µm 0.87 mm 198 mm 2.261 mrad 4.9 mm 0.53 1050 - 1620 nm H-LAK54 0.70" (17.7 mm)
PAF2-5D 4.6 mm 13.0 µm 0.90 mm 164 mm 2.826 mrad 4.9 mm 0.53 1.8 - 2.4 µm H-LAK54 0.70" (17.7 mm)
PAF2-7A 7.5 mm 3.5 µm 1.23 mm 1323 mm 0.467 mrad 4.5 mm 0.30 350 - 700 nm H-LAK54 0.70" (17.7 mm)
PAF2-7B 7.5 mm 5.0 µm 1.62 mm 1225 mm 0.667 mrad 4.5 mm 0.30 600 - 1050 nm H-LAK54 0.70" (17.7 mm)
PAF2-7C 7.5 mm 10.4 µm 1.42 mm 521 mm 1.387 mrad 4.5 mm 0.30 1050 - 1620 nm H-LAK54 0.70" (17.7 mm)
  • These values are calculated using the following equipment: -A: 460HP at 450 nm, -B: 780HP at 850 nm, -C: SMF-28e+ at 1550 nm, -D: SM2000 at 1996 nm, -E: ZrF4 at 3.39 µm
  • Input Mode Field Diameter
  • Maximum Waist Distance is defined as the maximum distance from the lens a Gaussian beam's waist can be placed.
  • Clear Aperture
  • Wavelength range of the antireflection coating. See the Graphs tab for details.
  • The length from the tip of the connector bulkhead to the face of the FiberPort flange, as shown in the diagram in the Operation tab.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
PAF2-2A Support Documentation
PAF2-2AFiberPort, FC/PC & FC/APC, f=2.0 mm, 350 - 700 nm, Ø0.33 mm Waist
$553.15
3-5 Days
PAF2-2B Support Documentation
PAF2-2BFiberPort, FC/PC & FC/APC, f=2.0 mm, 600 - 1050 nm, Ø0.43 mm Waist
$553.15
Today
PAF2-2C Support Documentation
PAF2-2CFiberPort, FC/PC & FC/APC, f=2.0 mm, 1050 - 1620 nm, Ø0.38 mm Waist
$553.15
Today
PAF2-4E Support Documentation
PAF2-4EFiberPort, FC/PC & FC/APC, f=4.0 mm, 2.0 - 5.0 µm, Ø1.17 mm Waist
$937.99
Lead Time
PAF2-5A Support Documentation
PAF2-5AFiberPort, FC/PC & FC/APC, f=4.6 mm, 350 - 700 nm, Ø0.75 mm Waist
$504.90
Lead Time
PAF2-5B Support Documentation
PAF2-5BFiberPort, FC/PC & FC/APC, f=4.6 mm, 600 - 1050 nm, Ø1.0 mm Waist
$504.90
3-5 Days
PAF2-5C Support Documentation
PAF2-5CFiberPort, FC/PC & FC/APC, f=4.6 mm, 1050 - 1620 nm, Ø0.87 mm Waist
$504.90
Lead Time
PAF2-5D Support Documentation
PAF2-5DFiberPort, FC/PC & FC/APC, f=4.6 mm, 1.8 - 2.4 µm, Ø0.90 mm Waist
$504.90
Today
PAF2-7A Support Documentation
PAF2-7AFiberPort, FC/PC & FC/APC, f=7.5 mm, 350 - 700 nm, Ø1.23 mm Waist
$504.90
3-5 Days
PAF2-7B Support Documentation
PAF2-7BFiberPort, FC/PC & FC/APC, f=7.5 mm, 600 - 1050 nm, Ø1.62 mm Waist
$504.90
3-5 Days
PAF2-7C Support Documentation
PAF2-7CFiberPort, FC/PC & FC/APC, f=7.5 mm, 1050 - 1620 nm, Ø1.42 mm Waist
$504.90
Today

Aspheric FiberPorts for FC/PC Connectors (EFL 11 mm or Greater)

Item # EFL Input MFDa,b Output 1/e2
Waist Diametera
Max Waist
Distancea,c
Divergencea Lens Characteristics Length Lf
CAd NA AR Rangee Material
PAF2P-11A 11.0 mm 3.5 µm 1.80 mm 2841 mm 0.318 mrad 4.4 mm 0.20 350 - 700 nm H-LAK54 0.87" (22.0 mm)
PAF2P-11B 11.0 mm 5.0 µm 2.38 mm 2630 mm 0.455 mrad 4.4 mm 0.20 600 - 1050 nm H-LAK54 0.87" (22.0 mm)
PAF2P-11C 11.0 mm 10.4 µm 2.09 mm 1115 mm 0.945 mrad 4.4 mm 0.20 1050 - 1620 nm H-LAK54 0.87" (22.0 mm)
PAF2P-11D 11.0 mm 13.0 µm 2.15 mm 921 mm 1.182 mrad 4.4 mm 0.20 1.8 - 2.4 µm H-LAK54 0.87" (22.0 mm)
PAF2P-11E 11.0 mm 14.80 µm 3.21 mm 1203 mm 1.345 mrad 4.0 mm 0.18 2.0 - 5.0 µm Black Diamond-2 0.87" (22.0 mm)
PAF2P-15A 15.3 mm 3.5 µm 2.50 mm 5483 mm 0.229 mrad 5.0 mm 0.16 350 - 700 nm ECO-550 0.87" (22.0 mm)
PAF2P-15B 15.3 mm 5.0 µm 3.31 mm 5076 mm 0.327 mrad 5.0 mm 0.16 600 - 1050 nm ECO-550 0.87" (22.0 mm)
PAF2P-15C 15.3 mm 10.4 µm 2.90 mm 2148 mm 0.680 mrad 5.0 mm 0.16 1050 - 1620 nm ECO-550 0.87" (22.0 mm)
PAF2P-15D 15.3 mm 13.0 µm 2.99 mm 1773 mm 0.850 mrad 5.0 mm 0.16 1.8 - 2.4 µm ECO-550 0.87" (22.0 mm)
PAF2P-18A 18.4 mm 3.5 µm 3.01 mm 7936 mm 0.190 mrad 5.5 mm 0.15 350 - 700 nm ECO-550 0.87" (22.0 mm)
PAF2P-18B 18.4 mm 5.0 µm 3.98 mm 7347 mm 0.272 mrad 5.5 mm 0.15 600 - 1050 nm ECO-550 0.87" (22.0 mm)
PAF2P-18C 18.4 mm 10.4 µm 3.49 mm 3107 mm 0.565 mrad 5.5 mm 0.15 1050 - 1620 nm ECO-550 0.87" (22.0 mm)
PAF2P-18D 18.4 mm 13.0 µm 3.60 mm 2564 mm 0.707 mrad 5.5 mm 0.15 1.8 - 2.4 µm ECO-550 0.87" (22.0 mm)
  • These values are calculated using the following equipment: -A: 460HP at 450 nm, -B: 780HP at 850 nm, -C: SMF-28e+ at 1550 nm, -D: SM2000 at 1996 nm, -E: ZrF4 at 3.39 µm
  • Input Mode Field Diameter
  • Maximum Waist Distance is defined as the maximum distance from the lens a Gaussian beam's waist can be placed.
  • Clear Aperture
  • Wavelength range of the antireflection coating. See the Graphs tab for details.
  • The length from the tip of the connector bulkhead to the face of the FiberPort flange, as shown in the diagram in the Operation tab.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
PAF2P-11A Support Documentation
PAF2P-11AFiberPort, FC/PC, f=11.0 mm, 350 - 700 nm, Ø1.80 mm Waist
$553.15
Today
PAF2P-11B Support Documentation
PAF2P-11BFiberPort, FC/PC, f=11.0 mm, 600 - 1050 nm, Ø2.38 mm Waist
$553.15
Today
PAF2P-11C Support Documentation
PAF2P-11CFiberPort, FC/PC, f=11.0 mm, 1050 - 1620 nm, Ø2.09 mm Waist
$553.15
3-5 Days
PAF2P-11D Support Documentation
PAF2P-11DFiberPort, FC/PC, f=11.0 mm, 1.8 - 2.4 μm, Ø2.15 mm Waist
$553.15
Today
PAF2P-11E Support Documentation
PAF2P-11EFiberPort, FC/PC, f=11.0 mm, 2.0 - 5.0 µm, Ø3.21 mm Waist
$908.82
3-5 Days
PAF2P-15A Support Documentation
PAF2P-15AFiberPort, FC/PC, f=15.3 mm, 350 - 700 nm, Ø2.50 mm Waist
$553.15
3-5 Days
PAF2P-15B Support Documentation
PAF2P-15BFiberPort, FC/PC, f=15.3 mm, 600 - 1050 nm, Ø3.31 mm Waist
$553.15
3-5 Days
PAF2P-15C Support Documentation
PAF2P-15CFiberPort, FC/PC, f=15.3 mm, 1050 - 1620 nm, Ø2.90 mm Waist
$553.15
Lead Time
PAF2P-15D Support Documentation
PAF2P-15DFiberPort, FC/PC, f=15.3 mm, 1.8 - 2.4 µm, Ø2.99 mm Waist
$553.15
Today
PAF2P-18A Support Documentation
PAF2P-18AFiberPort, FC/PC, f=18.4 mm, 350 - 700 nm, Ø3.01 mm Waist
$601.39
Today
PAF2P-18B Support Documentation
PAF2P-18BFiberPort, FC/PC, f=18.4 mm, 600 - 1050 nm, Ø3.98 mm Waist
$601.39
Today
PAF2P-18C Support Documentation
PAF2P-18CFiberPort, FC/PC, f=18.4 mm, 1050 - 1620 nm, Ø3.49 mm Waist
$601.39
Today
PAF2P-18D Support Documentation
PAF2P-18DFiberPort, FC/PC, f=18.4 mm, 1.8 - 2.4 µm, Ø3.60 mm Waist
$601.39
Today

Aspheric FiberPorts for FC/APC Connectors (EFL 11 mm or Greater)

Item # EFL Input MFDa,b Output 1/e2
Waist Diametera
Max Waist
Distancea,c
Divergencea Lens Characteristics Length Lf
CAd NA AR Rangee Material
PAF2A-11A 11.0 mm 3.5 µm 1.80 mm 2841 mm 0.318 mrad 4.4 mm 0.20 350 - 700 nm H-LAK54 0.88" (22.4 mm)
PAF2A-11B 11.0 mm 5.0 µm 2.38 mm 2630 mm 0.455 mrad 4.4 mm 0.20 600 - 1050 nm H-LAK54 0.88" (22.4 mm)
PAF2A-11C 11.0 mm 10.4 µm 2.09 mm 1115 mm 0.945 mrad 4.4 mm 0.20 1050 - 1620 nm H-LAK54 0.88" (22.4 mm)
PAF2A-11D 11.0 mm 13.0 µm 2.15 mm 921 mm 1.182 mrad 4.4 mm 0.20 1.8 - 2.4 µm H-LAK54 0.88" (22.4 mm)
PAF2A-15A 15.3 mm 3.5 µm 2.50 mm 5483 mm 0.229 mrad 5.0 mm 0.16 350 - 700 nm ECO-550 0.88" (22.4 mm)
PAF2A-15B 15.3 mm 5.0 µm 3.31 mm 5076 mm 0.327 mrad 5.0 mm 0.16 600 - 1050 nm ECO-550 0.88" (22.4 mm)
PAF2A-15C 15.3 mm 10.4 µm 2.90 mm 2148 mm 0.680 mrad 5.0 mm 0.16 1050 - 1620 nm ECO-550 0.88" (22.4 mm)
PAF2A-15D 15.3 mm 13.0 µm 2.99 mm 1773 mm 0.850 mrad 5.0 mm 0.16 1.8 - 2.4 µm ECO-550 0.88" (22.4 mm)
PAF2A-18A 18.4 mm 3.5 µm 3.01 mm 7936 mm 0.190 mrad 5.5 mm 0.15 350 - 700 nm ECO-550 0.88" (22.4 mm)
PAF2A-18B 18.4 mm 5.0 µm 3.98 mm 7347 mm 0.272 mrad 5.5 mm 0.15 600 - 1050 nm ECO-550 0.88" (22.4 mm)
PAF2A-18C 18.4 mm 10.4 µm 3.49 mm 3107 mm 0.565 mrad 5.5 mm 0.15 1050 - 1620 nm ECO-550 0.88" (22.4 mm)
PAF2A-18D 18.4 mm 13.0 µm 3.60 mm 2564 mm 0.707 mrad 5.5 mm 0.15 1.8 - 2.4 µm ECO-550 0.88" (22.4 mm)
  • These values were calculated using the following equipment: -A: 460HP at 450 nm, -B: 780HP at 850 nm, -C: SMF-28e+ at 1550 nm, -D: SM2000 at 1996 nm
  • Input Mode Field Diameter
  • Maximum Waist Distance is defined as the maximum distance from the lens a Gaussian beam's waist can be placed.
  • Clear Aperture
  • Wavelength range of the antireflection coating. See the Graphs tab for details.
  • The length from the tip of the connector bulkhead to the face of the FiberPort flange, as shown in the diagram in the Operation tab.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
PAF2A-11A Support Documentation
PAF2A-11AFiberPort, FC/APC, f=11.0 mm, 350 - 700 nm, Ø1.80 mm Waist
$553.15
Lead Time
PAF2A-11B Support Documentation
PAF2A-11BFiberPort, FC/APC, f=11.0 mm, 600 - 1050 nm, Ø2.38 mm Waist
$553.15
Lead Time
PAF2A-11C Support Documentation
PAF2A-11CFiberPort, FC/APC, f=11.0 mm, 1050 - 1620 nm, Ø2.09 mm Waist
$553.15
Today
PAF2A-11D Support Documentation
PAF2A-11DFiberPort, FC/APC, f=11.0 mm, 1.8 - 2.4 µm, Ø2.15 mm Waist
$553.15
Today
PAF2A-15A Support Documentation
PAF2A-15AFiberPort, FC/APC, f=15.3 mm, 350 - 700 nm, Ø2.50 mm Waist
$553.15
Lead Time
PAF2A-15B Support Documentation
PAF2A-15BFiberPort, FC/APC, f=15.3 mm, 600 - 1050 nm, Ø3.31 mm Waist
$553.15
Today
PAF2A-15C Support Documentation
PAF2A-15CFiberPort, FC/APC, f=15.3 mm, 1050 - 1620 nm, Ø2.90 mm Waist
$553.15
Today
PAF2A-15D Support Documentation
PAF2A-15DFiberPort, FC/APC, f=15.3 mm, 1.8 - 2.4 µm, Ø2.99 mm Waist
$553.15
Today
PAF2A-18A Support Documentation
PAF2A-18AFiberPort, FC/APC, f=18.4 mm, 350 - 700 nm, Ø3.01 mm Waist
$601.39
3-5 Days
PAF2A-18B Support Documentation
PAF2A-18BFiberPort, FC/APC, f=18.4 mm, 600 - 1050 nm, Ø3.98 mm Waist
$601.39
Today
PAF2A-18C Support Documentation
PAF2A-18CFiberPort, FC/APC, f=18.4 mm, 1050 - 1620 nm, Ø3.49 mm Waist
$601.39
Lead Time
PAF2A-18D Support Documentation
PAF2A-18DFiberPort, FC/APC, f=18.4 mm, 1.8 - 2.4 µm, Ø3.60 mm Waist
$601.39
Today

Aspheric FiberPorts for SMA Connectors (All Focal Lengths)

Item # EFL Input MFDa,b Output 1/e2
Waist Diametera
Max Waist
Distancea,c
Divergencea Lens Characteristics Length Lf
CAd NA AR Rangee Material
PAF2S-4E 4.0 mm 14.80 µm 1.17 mm 162 mm 3.700 mrad 5.0 mm 0.56 2.0 - 5.0 µm Black Diamond-2 0.87" (22.0 mm)
PAF2S-5A 4.6 mm 3.5 µm 0.75 mm 499 mm 0.761 mrad 4.9 mm 0.53 350 - 700 nm H-LAK54 0.87" (22.0 mm)
PAF2S-5B 4.6 mm 5.0 µm 1.00 mm 463 mm 1.087 mrad 4.9 mm 0.53 600 - 1050 nm H-LAK54 0.87" (22.0 mm)
PAF2S-5C 4.6 mm 10.4 µm 0.87 mm 198 mm 2.261 mrad 4.9 mm 0.53 1050 - 1620 nm H-LAK54 0.87" (22.0 mm)
PAF2S-5D 4.6 mm 13.0 µm 0.90 mm 164 mm 2.826 mrad 4.9 mm 0.53 1.8 - 2.4 µm H-LAK54 0.87" (22.0 mm)
PAF2S-7A 7.5 mm 3.5 µm 1.23 mm 1323 mm 0.467 mrad 4.5 mm 0.30 350 - 700 nm H-LAK54 0.87" (22.0 mm)
PAF2S-7B 7.5 mm 5.0 µm 1.62 mm 1225 mm 0.667 mrad 4.5 mm 0.30 600 - 1050 nm H-LAK54 0.87" (22.0 mm)
PAF2S-7C 7.5 mm 10.4 µm 1.42 mm 521 mm 1.387 mrad 4.5 mm 0.30 1050 - 1620 nm H-LAK54 0.87" (22.0 mm)
PAF2S-11A 11.0 mm 3.5 µm 1.80 mm 2841 mm 0.318 mrad 4.4 mm 0.20 350 - 700 nm H-LAK54 1.04" (26.5 mm)
PAF2S-11B 11.0 mm 5.0 µm 2.38 mm 2630 mm 0.455 mrad 4.4 mm 0.20 600 - 1050 nm H-LAK54 1.04" (26.5 mm)
PAF2S-11C 11.0 mm 10.4 µm 2.09 mm 1115 mm 0.945 mrad 4.4 mm 0.20 1050 - 1620 nm H-LAK54 1.04" (26.5 mm)
PAF2S-11D 11.0 mm 13.0 µm 2.15 mm 921 mm 1.182 mrad 4.4 mm 0.20 1.8 - 2.4 µm H-LAK54 1.04" (26.5 mm)
PAF2S-11E 11.0 mm 14.80 µm 3.21 mm 1203 mm 1.345 mrad 4.0 mm 0.18 2.0 - 5.0 µm Black Diamond-2 1.04" (26.5 mm)
  • These values are calculated using the following equipment: -A: 460HP at 450 nm, -B: 780HP at 850 nm, -C: SMF-28e+ at 1550 nm, -D: SM2000 at 1996 nm, -E: ZrF4 at 3.39 µm
  • Input Mode Field Diameter
  • Maximum Waist Distance is defined as the maximum distance from the lens a Gaussian beam's waist can be placed.
  • Clear Aperture
  • Wavelength range of the antireflection coating. See the Graphs tab for details.
  • The length from the tip of the connector bulkhead to the face of the FiberPort flange, as shown in the diagram in the Operation tab.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
PAF2S-4E Support Documentation
PAF2S-4EFiberPort, SMA, f=4.0 mm, 2.0 - 5.0 µm, Ø1.17 mm Waist
$853.84
Today
PAF2S-5A Support Documentation
PAF2S-5AFiberPort, SMA, f=4.6 mm, 350 - 700 nm, Ø0.75 mm Waist
$433.09
Today
PAF2S-5B Support Documentation
PAF2S-5BFiberPort, SMA, f=4.6 mm, 600 - 1050 nm, Ø1.00 mm Waist
$433.09
3-5 Days
PAF2S-5C Support Documentation
PAF2S-5CFiberPort, SMA, f=4.6 mm, 1050 - 1620 nm, Ø0.87 mm Waist
$433.09
3-5 Days
PAF2S-5D Support Documentation
PAF2S-5DFiberPort, SMA, f=4.6 mm, 1.8 - 2.4 µm, Ø0.90 mm Waist
$433.09
Today
PAF2S-7A Support Documentation
PAF2S-7AFiberPort, SMA, f=7.5 mm, 350 - 700 nm, Ø1.23 mm Waist
$433.09
3-5 Days
PAF2S-7B Support Documentation
PAF2S-7BFiberPort, SMA, f=7.5 mm, 600 - 1050 nm, Ø1.62 mm Waist
$433.09
Lead Time
PAF2S-7C Support Documentation
PAF2S-7CFiberPort, SMA, f=7.5 mm, 1050 - 1620 nm, Ø1.42 mm Waist
$433.09
Today
PAF2S-11A Support Documentation
PAF2S-11AFiberPort, SMA, f=11.0 mm, 350 - 700 nm, Ø1.80 mm Waist
$451.04
Today
PAF2S-11B Support Documentation
PAF2S-11BFiberPort, SMA, f=11.0 mm, 600 - 1050 nm, Ø2.38 mm Waist
$451.04
3-5 Days
PAF2S-11C Support Documentation
PAF2S-11CFiberPort, SMA, f=11.0 mm, 1050 - 1620 nm, Ø2.09 mm Waist
$451.04
Today
PAF2S-11D Support Documentation
PAF2S-11DFiberPort, SMA, f=11.0 mm, 1.8 - 2.4 µm, Ø2.15 mm Waist
$451.04
Today
PAF2S-11E Support Documentation
PAF2S-11EFiberPort, SMA, f=11.0 mm, 2.0 - 5.0 µm, Ø3.21 mm Waist
$848.23
3-5 Days
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