Optical waveguide feedthrough assembly

Details Optical waveguide feedthrough assembly Optical waveguide feedthrough assembly

G - Physics

02

B

G02B 6/44 (2006.01) G01D 5/26 (2006.01) G01K 11/32 (2006.01) G01L 11/02 (2006.01)

Patent

CA 2548828

An optical waveguide feedthrough assembly passes at least one optical waveguide through a bulk head, a sensor wall, or other feedthrough member. The optical waveguide feedthrough assembly comprises a cane-based optical waveguide that forms a glass plug sealingly disposed in a feedthrough housing. For some embodiments, the optical waveguide includes a tapered surface biased against a seal seat formed in the housing. The feedthrough assembly can include an annular gold gasket member disposed between the tapered surface and the seal seat. The feedthrough assembly can further include a backup seal. The backup seal comprises an elastomeric annular member disposed between the glass plug and the housing. The backup seal may be energized by a fluid pressure in the housing. The feedthrough assembly is operable in high temperature and high pressure environments.

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