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Optical Fiber Clamps, Post-Mountable and SM1-Threaded


  • Adjustable Force Magnetic Clamp for Fibers with Ø250 µm Coatings
  • Clamping Arm Swings Clear for Easy Loading
  • Rubber Pad Provides Excellent Holding Force

Ø1" Lens Tube

SM1 External
Threads

SM1F1-250

Soft Rubber Pad Securely Clamps Ø250 µm Fiber in Machined V-Groove

Magnetically Coupled Swing Arm Simplifies Loading/Unloading Fiber

8-32 (M4) Tap

T711-250

Related Items


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Other Bare Fiber Mounts
Post Mountable or SM ThreadedFlexure Stage Compatible
V-MountsClampsChucksRotator

Features

  • Adjustable Force Magnetic Clamps for Fibers with Ø250 µm Coatings
  • T711-250: Post Mountable via 8-32 (M4) Tapped Hole for Optical Table Applications
  • SM1F1-250: Externally Threaded for use with SM1-Threaded Products
  • Clamping Arm Swings Clear for Easy Loading and Unloading of the Optical Fiber
  • Rubber Padding Provides Excellent Holding Force without Damaging the Optical Fiber

These general purpose fiber clamps provide easy means for incorporating glass or plastic optical fibers into optomechanical post assemblies or SM1-threaded components. The precision V-groove and rubber pad are designed to clamp onto the buffer of single mode or multimode fibers without damaging them. The combination of a magnet in the main mounting body and magnetic steel setscrew in the clamping arm provide a means to dynamically adjust the clamping force. Move the magnetic setscrew closer to the main body to increase the clamping force. Conversely, adjusting the setscrew away from the magnet decreases the clamping force.

This product is often used along with one of our popular Aspheric Lenses to create a fiber output collimator that provides near-diffraction-limited performance. We also offer integrated FiberPort Collimators/Couplers for FiberBench systems. For our Fiber Launch stage systems, we offer bare fiber mounts, chucks, and rotators. Please see our complete collection of Fiber Optomechanics.


Posted Comments:
leidner  (posted 2018-05-17 14:51:15.333)
We purchased a number of these, however they are very difficult to place fibers into because there is either a) no large scale knotch to lay fiber in such as in the newport 561-fh or 2) a place to hold the fiber down with ones finger that doesn't obstruct the magnetic closure such as what comes with fusion splicer v grooves. Either of these features would make you product an order of magnitude more usable than it is. As it stands we are happily paying ~4x the prices to get a more useful product in the 561-fh because of the difficulty in laying fiber into your v-groove.
mmcclure  (posted 2018-05-17 03:28:49.0)
This is a response from Matt at Thorlabs: Thank you very much for providing helpful feedback and suggestions to improve these products. I have relayed this information to our internal engineering forum, where we will consider them further.

Post-Mountable Fiber Clamp

Minimum and Maximum Recommended Diameters
Accepted Diametersa
DminDmax
150 µm341 µm
  • These values are typical and do not take manufacturing tolerances into account.
  • Precision V-Groove Designed to Hold Ø150 µm to Ø341 µm Fibers
  • Post-Mountable via 8-32 (M4) Tapped Hole
  • Clamps with Adjustable Magnetic Force

The T711/M-250 post-mountable fiber clamp features a precision V-groove and rubber pad designed to clamp onto the buffer of single mode or multimode fibers without damaging them. With an 8-32 (M4) tap, this fiber clamp is compatible with Thorlabs' family of Ø1/2" Posts and can be integrated into optomechanical breadboards or optical table assemblies.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
T711-250 Support Documentation
T711-250Post-Mountable Fiber Clamp, 250 µm, 8-32 Tap
$72.17
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
T711/M-250 Support Documentation
T711/M-250Post-Mountable Fiber Clamp, 250 µm, M4 Tap
$72.17
Today

SM1-Threaded Fiber Clamp

SM1F1-250 Mounting Applications
Click to Enlarge

View Imperial Product List
Item #QtyDescription
SM1F1-2501Externally SM1-Threaded Fiber Clamp, 250 µm
S120VC1Standard Photodiode Power Sensor, Si, 200 - 1100 nm, 50 mW
TR21Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 2"
SM1M051SM1 Lens Tube Without External Threads, 1/2" Long, Two Retaining Rings Included
View Metric Product List
Item #QtyDescription
SM1F1-2501Externally SM1-Threaded Fiber Clamp, 250 µm
S120VC1Standard Photodiode Power Sensor, Si, 200 - 1100 nm, 50 mW
TR50/M1Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 50 mm
SM1M051SM1 Lens Tube Without External Threads, 1/2" Long, Two Retaining Rings Included
SM1F1-250 Mounting a Bare Fiber to a Power Sensor 
SM1F1 Mounting Applications
Click to Enlarge

View Product List
Item #QtyDescription
SM1F1-2501Externally SM1-Threaded Fiber Clamp, 250 µm
KM100T1SM1-Threaded Kinematic Mount for Thin Ø1" Optics
SM1F1-250 Attached to a Kinematic Mount via SM1 Threading
Accepted Diametersa
Dmin Dmax
150 µm 341 µm
  • These values are typical and do not take manufacturing tolerances into account.
  • Precision V-Groove Designed to Hold Ø150 µm to Ø341 µm Fibers
  • Externally SM1-Threaded for use with SM1-Threaded Products
  • Included SM1NT Locking Ring Allows Mount to be Locked in Lens Tube

The SM1F1-250 fiber clamp consists of a two-part assembly that allows the centration of the fiber to be changed independently from a lens tube. The V-groove and rubber pad design provide excellent holding force without damaging the fiber. With external SM1 threads and a locking ring, this fiber clamp is compatible with our SM1-threaded products, including threaded kinematic mounts (as shown to right) and Ø1" lens tubes. Alternatively,this mount can be used to secure a bare fiber end so that the output is incident on a power sensor, as seen in the photo to the far right. The outer profile of this clamp will fit through the clear aperture of a Ø1" lens tube, allowing a second lens tube to be screwed on for light-tight applications.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SM1F1-250 Support Documentation
SM1F1-250Customer Inspired! Externally SM1-Threaded Fiber Clamp, 250 µm
$85.94
Today
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