With the hermetic feedthroughs for optical fibers, optical signals can be easily delivered into a vacuum or pressure chamber. For SEDI, our supplier, pressures of up to 1000 bar and a vacuum as little as 10–9 mbar are not a problem.
Different versions for single-mode and multi-mode fibers are available. In multi-mode fibers, core diameters of 50 µm to 1000 µm can be achieved. In single-mode fibers, it is possible to also use polarization-maintaining fibers.
These feedthroughs are available on a standard basis with the following connectors:
- FC/PC and FC/APC connectors in SM and PM fibers
- ST and SMA connectors in MM fibers
Mounting these feedthroughs on a chamber wall is done using a simple mounting flange that holds the feedthrough steady with a counter nut. To meet the specifications required of vacuum technology, our product range was expanded to include CF flange and KF flange versions.
The hermetically sealed feedthroughs are available as coupler and as in-line versions. Special designs that include customer-supplied specialty fibers, multiple channel designs, and optical/electrical hybrid feedthroughs are available upon request.
