Fiber optic hermetic connector

Details Fiber optic hermetic connector Fiber optic hermetic connector

1991-02-11

1992-02-25

Sikes, William L.

Optical waveguides

With disengagable mechanical connector

Structure surrounding optical fiber-to-fiber connection

G02B 636, G02B 726

Patent

active

050919873

ABSTRACT:
A fiber optic transmission line is passed uninterrupted through a hermetically sealed dielectric pressure barrier. This is accomplished by fusing glass or casting a resin about hollow upstanding sleeves within the bore of a connector housing. The glass forms a strong hermetically sealed barrier caused by strong compressive forces resulting from the different coefficients of thermal expansion between the metal bore walls and glass matrix. A fiber optic core is passed through a hollow sleeve and sealed to an aperture in a contact pin which is hermetically sealed to the end of the sleeve. The end of the pin is polished to provide an abutment joint with a corresponding contact surface on an associated connector. In the case of a resin matrix, the resin may be cast about the sleeves within the housing bore. During hardening, the resin will bond to the sleeves and walls of the bore to form a strong hermetically sealed pressure barrier.

REFERENCES:
patent: 4553812 (1985-11-01), Kojiro et al.
patent: 4834479 (1989-05-01), Adl

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