Protective cladding for a mono-mode directional coupler

Details Protective cladding for a mono-mode directional coupler Protective cladding for a mono-mode directional coupler

1994-01-11

1995-07-04

Lee, John D.

Optical waveguides

With optical coupler

Permanently fixed coupler

385 42, 385 99, G02B 636

Patent

active

054308186

ABSTRACT:
The protective cladding for a mono-mode directional coupler made of at least two incoming and outgoing fiber optic waveguides which are fused to one another along a coupling segment comprises at least two open cladding parts which can be connected to form a tube-shaped cladding. The material of the cladding parts has the same coefficient of expansion as the waveguide material of the mono-mode directional coupler. The protective cladding, being mechanically tightly connected with the incoming and outgoing fiber optic waveguides while leaving open the coupling segment of the mono-mode directional coupler, is closed off in a gas-tight manner such that in the case of temperature changes, there are no mechanical tensions in the coupling segment.

REFERENCES:
patent: 4714316 (1987-12-01), Moore et al.
patent: 4822128 (1989-04-01), Imoto et al.
patent: 5148508 (1992-09-01), Anjan et al.
patent: 5261018 (1993-11-01), Suganuma et al.
patent: 5295205 (1994-03-01), Miller et al.
patent: 5295219 (1994-03-01), Koya et al.

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