Optical device with mode absorbing films deposited on both sides

Details Optical device with mode absorbing films deposited on both sides Optical device with mode absorbing films deposited on both sides

1994-07-06

1996-01-09

Lee, John D.

Optical waveguides

With optical coupler

Particular coupling function

385 2, 385 11, 385 40, 385129, G02B 6126

Patent

active

054836093

ABSTRACT:
Side planes of input and output waveguides are exposed in a waveguide type optical device by etching. The exposed side planes are covered with deposited metal films. A TM mode light is propagated through the input and output waveguides without being badly affected by the metal films, but a TM mode light is absorbed by the metal films.

REFERENCES:
patent: 4300814 (1981-11-01), Carenco
patent: 4359260 (1982-11-01), Reinhart et al.
patent: 4787691 (1988-11-01), Lorenzo et al.
patent: 4792200 (1988-12-01), Amann et al.
patent: 5015053 (1991-05-01), Johnson
patent: 5050947 (1991-09-01), Kawashima et al.
patent: 5058971 (1991-10-01), Schmitt et al.
patent: 5077822 (1991-12-01), Cremer
patent: 5276745 (1994-01-01), Revelli, Jr.

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