If you want to use an optical fiber in a vacuum or in a pressure chamber, you need special feedthroughs that can withstand high pressure and extreme temperatures. In addition to KF and CF flanges, we now also offer feedthroughs with M10 and M16 threads like the ones used in military and industrial applications, etc.
The flanges are suitable for all fiber types (e.g., multimode, single-mode, and polarization-maintaining (PM) fibers). They are available as feedthroughs for FC/PC and FC/APC connectors on an as-needed basis.