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Products HomeUltra-High Vacuum Fiber Feedthrough ConFlats
- ConFlat Fiber Feedthrough for Ultra-High Vacuum
- SMA Terminated on Both Sides
- Available for 200 - 800 nm or 400 - 2200 nm
Wavelength Range
V2L6S
CF Flange for SMA Fibers
(Shown with Protective Caps)
ADASMAV
Vacuum-Compatible Mating Sleeve
V2H6S
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| Specifications | ||
|---|---|---|
| Item # | V2H6S | V2L6S |
| Wavelength Rangea | 200 - 800 nm | 400 - 2200 nm |
| Fiber Core Diameter | 600 µm | |
| NA | 0.22 ± 0.02 | |
| Vacuum Level | 1 × 10-10 Torr | |
| Insertion Loss | ≤2.3 dB | |
| Max Optical Power | 1 W | |
| Max Temperature | 250 °C | |
Features
- Construction Enables use at Vacuum Levels Down to 1 × 10-10 Torr
- Mates to Ø2.75" ConFlat Flanges
- Bake-Out can be Conducted at Temperatures up to 250 °C
- Feedthrough Contains Ø600 µm Core MM Fiber with One of Two Transmission Ranges
- UV/Vis: 200 - 800 nm
- Vis/NIR: 400 - 2200 nm
- Compatible with Thorlabs' Vacuum-Compatible Multimode Fiber Optic Patch Cables
Thorlabs' ultra-high-vacuum-compatible Ø2.75" (DN40) fiber feedthrough ConFlats (CF) allow the user to couple light into a vacuum chamber from the outside environment using SMA905-terminated cables (when using fiber patch cables in a vacuum environment, ensure that the cables are vacuum compatible). They are available with a transmission range of either 200 - 800 nm (V2H6S) or 400 - 2200 nm (V2L6S). These fiber feedthroughs incorporate a multimode step index optical fiber with a Ø600 µm core, have an insertion loss of ≤2.3 dB (see Graphs tab), and can handle optical powers up to 1 W.
Designed for use at ultra high vacuum (UHV) pressures, Thorlabs' fiber feedthrough CF utilizes a hermetically sealed fiber in a stainless steel shell. The ConFlat design, which requires a copper gasket seal, is compatible for use on chambers operating at vacuum levels down to 10-10 Torr. The fiber feedthrough features a male SMA905 connector on both ends; mating sleeves may be used to connect fiber patch cables to the feedthrough.
Thorlabs offers the ADASMAV for mating vacuum-compatible patch cables inside a vacuum environment, such as mating to the UHV fiber feedthrough conflat. This mating sleeve is a vacuum-compatible version of the ADASMA SMA to SMA Mating Sleeve. Constructed using 304 stainless steel, this adapter is designed to be used within ultra-high vacuum systems (>10-10 Torr) and features a Ø0.063" (Ø1.6 mm) hole through the body to serve as a vent, allowing trapped gas to escape.
Thorlabs also sells CF viewports for Ø1" windows, Ø1.5" flat windows, and Ø1.5” wedged windows as well as an extended line of vacuum compatible parts.
Click to Enlarge
This graph shows the attenuation vs. wavelength for the V2H6S UHV fiber feedthrough ConFlat.
Click to Enlarge
This graph shows the attenuation vs. wavelength for the V2L6S UHV fiber feedthrough ConFlat.
| Posted Comments: | |
schaefer
(posted 2016-09-02 09:33:33.39) Can you provide such a UHV feedthrough, but without connectors directly at the flange? Instead I would like to have a fiber going through the flange with something like 20cm fiber with a FC/PC connector on the vacuum side and 2m on the non-vacuum side (FC/PC). As for fibers: FG105LVA or FG050UGA would be of interest to me. tfrisch
(posted 2016-09-07 01:30:10.0) Hello, thank you for contacting Thorlabs. We will contact you directly about your application. Acrylate coated fibers will outgas in vacuum, so they should not be used. andrew.davies.physics
(posted 2016-08-26 11:35:25.4) You should allow custom fibers to be placed in the feedthrough. For instance I would like to use your FG105LVA fiber. The different core size would cause large coupling losses on both ends. tfrisch
(posted 2016-09-01 09:30:49.0) Hello, thank you for contacting Thorlabs. Unfortunately, FG105LVA has an acrylate coating which will outgas in vacuum. I will reach out to you directly. user
(posted 2014-11-21 10:09:59.43) Could you make a FC/apc version of this feedthrough? cdaly
(posted 2014-11-25 01:55:12.0) Response from Chris at Thorlabs: Yes, we should be able to provide this as a custom for the time being and are looking at introducing it as a standard part as well. Please contact us at techsupport@thorlabs.com if you require a quote for this item. |
Zoom- Ø2.75", Male SMA905 Terminated Fiber Feedthrough CF
- Optical Fiber is Multimode Step Index with Ø600 µm Core and UV/Vis (200 - 800 nm) or Vis/NIR (400 - 2200 nm) Transmission Range
- Insertion Loss ≤2.3 dB
- Compatible with Thorlabs' Vacuum-Compatible Multimode Fiber Optic Patch Cables
- Double-Bagged for Cleanroom Environments
Thorlabs Ø2.75" Fiber Feedthrough ConFlats (CF) allow for optical coupling into Ultra High Vacuum (UHV) systems down to 10-10 Torr. These are fixed (non-rotating) flanges with male SMA905 fiber connectors on both sides. Mating sleeves may be used to connect fiber patch cables to the feedthrough; we recommend the ADASMAV (sold below) when mating a patch cable to the CF on the vacuum side. These flanges have six 1/4" (M6) through holes for bolting onto any standard Ø2.75" CF flange. Please note that mounting hardware is not included. The feedthrough has an insertion loss of ≤2.3 dB and can handle up to 1 W of power. A glass-ceramic seal holds the hermetically-sealed fiber in place and forms the leak-tight seal.
The CF style flange utilizes a knife-edge mechanism to create an airtight seal between mating pieces. To accomplish the seal, a copper gasket is most often employed. As the bolts of the mating pair are tightened, the knife edge “bites” into the copper gasket, deforming it. The extruded metal fills all the machining marks and surface defects, which yields a leak-tight seal.
Zoom| Vacuum Compatibility Specifications | |
|---|---|
| Vacuum Compatibility as Packageda | 10-10 Torr |
| Materials | 304 Stainless Steel |
| Preparation and Packaging | Chemically Cleaned and Double Vacuum Bagged |
| Stainless Steel Outgassing Rate at 20 °C | 1.8 x 10-8 Torr-Liters/s/cm2 |
Click to Enlarge
The ADASMAV has a Ø0.063" (Ø1.6 mm) vent hole.
- Air-Spaced SMA to SMA Mating Sleeve for Ultra-High Vacuum Applications
- Constructed from 304 Stainless Steel
- <1.5 dB Insertion Loss (Typical Loss for a Pair of Ø200 µm Core Multimode Fibers)
- Double-Bagged for Cleanroom Environments
- Compatible with Thorlabs' Vacuum-Compatible Multimode Fiber Optic Patch Cables
Thorlabs' ADASMAV Mating Sleeve is a vacuum-compatible version of the ADASMA SMA to SMA Mating Sleeve. Constructed using 304 stainless steel, this adapter is designed to be used within ultra-high vacuum systems (>10-10 Torr) and features a Ø0.063" (Ø1.6 mm) vent hole in the side to allow trapped gases to escape (see image to the right). Unlike the standard version, the ADASMAV is only compatible with SMA905-style connectors. A 304 stainless steel washer and nut are included for custom mounting.
Many of our patch cables can be special ordered for vacuum use. Contact Tech Support for details.
Vacuum Compatibility Information
Our vacuum-compatible adapter is chemically cleaned and prepared for vacuum applications before packaging. It is compatible directly out of the packaging with vacuum environments down to 10-10 Torr. With additional cleaning and processing, it can be used at even lower pressures, only limited by the outgassing rate of the stainless steel (see the table above). The material properties of the stainless steel and the cleaning methods completed by the end user should be used to determine the appropriateness of these products and materials in a specific vacuum system. Please note that using caps or panels not rated for vacuum applications with the ADASMAV is not recommended.
We also offer other vacuum-compatible components which may be used in vacuum applications.
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