Thorlabs offers several vacuum-compatible fiber patch cables. These include step-index multimode patch cables that are suitable for use at temperatures up to 250 °C, and a vacuum-compatible MIR multimode 1 m patch cable.
To send fiber optic signals from vacuum to atmosphere, we offer fiber feedthrough flanges with hermetically sealed multimode step-index fiber, for use down to 10 x 10-10 Torr. Additionally we offer vacuum-compatible FC/PC and SMA90s fiber adapters, along with SMA905 stainless steel connectors for use at high temperatures.