VFT Fiber Vacuum Pressure Feedthroughs

Gas Leak Rate <1 x 10-8 scc/s; Fiber Type SM, MM, PM, High-Power Fibers; Cladding Diameter 125 to 1000 µm; Sealant Teflon, Viton; Operating Temperature -180 to +230 °C OZ Optics’ VAC series of fiber optic vacuum pressure feedthroughs provide a simple way to use optical fibers with vacuum and pressure chambers. They are available in two versions - a penetrating feedthrough fiber version and a receptacle style version. Penetrating versions have the fibers directly installed. One or four fiber versions are available. The fibers are installed in the OZ Optics factory. The fibers pass through a soft sealant material which is compressed by the compressive endcap and internal squeezer of the feedthrough. This conforms the sealant material surrounding the fiber, sealing the hole. A variety of sealant materials can be used. Viton is recommended for most applications up to +230 °C, and Teflon for cryogenic applications. A 1/4” NPT thread vacuum feedthrough is our standard. 1/8” NPT thread is also available for single channel assemblies with no connectors. In penetrating versions, the fiber can be protected in 900 µm loose tubing or a 3 mm OD stainless steel cable. The receptacle style version contains a short fiber stub, which is sealed using a vacuum rated glue. An O-ring is used between the chamber wall and the flange to seal the system. Adapters for various standard connectors are available. Key Features: Vacuum or Pressure Seal; Fiber in Penetrating Style Can Be Protected in Loose Tubing or Stainless Steel Cable Rugged Design Compact Low Transmission Loss (Excluding Connector Losses) Easy Installation Wide Range of Connector Types Single Fiber and Four Fiber Penetrating Versions Available Receptacle or Penetrating Type Available Operating Temperature Receptacle Type: -35 to +90 °C Operating Temperature Penetrating Type: -20 to 230 °C (Viton), -180 to +230 °C (Teflon) Applications: Laser Power Delivery or Optical Sensing in a Pressure or Vacuum Chamber