Our Ultra-High-Vacuum-Compatible Ø2.75" (DN40) Fiber Feedthrough CF Flanges allow for optical coupling into ultra-high-vacuum (UHV) systems using SMA905-terminated fiber patch cables and mating sleeves. CF Flange Mounting Hardware Pack and Copper Gaskets Sold Below.Laser Welded Body Adhesive-Free on Vacuum Side.304 Stainless Steel Construction for High Durability and Low Outgassing.Hermetically-Sealed Fiber Tip Limits Virtual Leaks.Construction Enables use at Vacuum Pressures Down to.Ultra-High Vacuum Fiber Feedthrough CF Flange Cross-Section Thorlabs also sells additional high-vacuum CF components, KF16-, KF25-, and KF40-flanged components and accessories, as well as an extended line of vacuum-compatible parts. Since there is no epoxy on the vacuum side of the feedthrough, there is minimal contamination and gas load on the vacuum system. In addition, the locations of these laser welds and the hermetic glass-to-metal seal ensure that only external, easy-to-clean surfaces are directly exposed to the vacuum. The high- and low-OH fiber feedthroughs have unique laser-welded joints that provide sturdier construction than traditional adhesives and greatly minimize leak rate. Feedthroughs with high- or low-OH fiber feature a Ø0.063" (Ø1.6 mm) hole through the body to serve as a vent, allowing trapped gas to escape. When using fiber patch cables in a vacuum environment, ensure that the cables are vacuum compatible. The mid-IR KF40 flange fiber feedthrough (Item # VK4F1S) has a 17.78" (451.6 mm) long, ruggedized, hermetic, permanently attached, InF 3 multimode fiber cable ending in an male SMA905 connector on the side facing away from vacuum. The fiber feedthroughs feature male SMA905 connectors on both sides mating sleeves may be used to connect fiber patch cables. For the side of the feedthrough that is inside of the vacuum environment, the ADASMAV vacuum-compatible SMA-to-SMA mating sleeve, available below, can be used to connect a vacuum-compatible patch cable. Constructed using 304 stainless steel, this adapter is designed to be used within ultra-high vacuum systems. The flanges are double vacuum bagged to help prevent contamination when transported into a cleanroom environment. Each fiber feedthrough incorporates a hermetically sealed step-index multimode optical fiber in a stainless steel shell, provides a low insertion loss of ≤2.3 dB, and can handle optical powers up to 1 W. These feedthroughs allow for optical coupling into ultra-high-vacuum (UHV) systems using SMA905-terminated fiber patch cables and mating sleeves.
Thorlabs manufactures Ultra-High-Vacuum Compatible Fiber Feedthroughs for both CF Ø2.75" (DN40) and KF40 flanged systems. Vacuum-Compatible Mating Sleeve and Flange Mounting Components Sold Below.Up to 250 ☌ for High- and Low-OH Fiber.Bake-Out can be Conducted at High Temperatures.Compatible with Thorlabs Vacuum-Compatible Multimode Fiber Optic Patch Cables.Hermetically Sealed Multimode Step-Index Fiber.Quickly Connect SMA-Terminated Fibers to a Vacuum Chamber.KF40 Flange-Centering O-Ring Carrier and Wing Nut Clamp CF Flange Copper Gaskets and Mounting Hardware
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