Tunable directional optical waveguide couplers

Details Tunable directional optical waveguide couplers Tunable directional optical waveguide couplers

1998-08-05

1999-12-14

Ullah, Akm E.

Optical waveguides

With optical coupler

Particular coupling structure

385129, G02B 626

Patent

active

060028238

ABSTRACT:
The thermo-optically controlled optical couplers wherein the coupling region between the waveguides in the coupling section is filled with a material having a high dependence of refractive index on temperature thus making the thermo-optic control means more efficient and allowing a greater range of adjustment in the coupling coefficient for a given temperature change.

REFERENCES:
patent: 3880630 (1975-04-01), Izawa
patent: 5170451 (1992-12-01), Ohshima
patent: 5796885 (1998-08-01), Gonthier et al.
patent: 5875272 (1999-02-01), Kewitsch et al.

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