Optical waveguide device

Details Optical waveguide device Optical waveguide device

1992-04-30

1993-02-09

Ullah, Akm E.

Optical waveguides

With optical coupler

Particular coupling structure

385 11, G02B 610, G02F 1025

Patent

active

051858312

ABSTRACT:
A TE polarization absorption film is provided on an optical waveguide between an ouput end of the optical waveguide and a directional coupler composed of the optical waveguide and another optical waveguide. In accordance with the presence of the TE polarization absorption film, a difference of output light power between polarization components becomes minimized.

REFERENCES:
patent: 4220395 (1980-09-01), Wang et al.
patent: 4697868 (1987-10-01), Thanivavarn
patent: 4762384 (1988-09-01), Hegarty
patent: 4775214 (1988-10-01), Johnson
patent: 4886332 (1989-12-01), Wolfe
patent: 4952014 (1990-08-01), Lieberman
patent: 5031983 (1991-07-01), Dillon, Jr. et al.
patent: 5058971 (1991-10-01), Schmitt et al.
patent: 5117469 (1992-05-01), Cheung et al.
Y. Tanisawa et al., "Low Drive Voltage and Low Loss . . . Waveguide Switches", 1st Microoptics Conference 1987, pp. 106-109.

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