Optical waveguide type star coupler

Details Optical waveguide type star coupler Optical waveguide type star coupler

1990-04-16

1992-07-28

Ullah, Akm E.

Optical waveguides

With optical coupler

Switch

385 44, 385 45, G02B 600, G02B 636

Patent

active

051346729

ABSTRACT:
An optical waveguide star coupler includes a light propagating core provided on a substrate. An exciting light and a signal light are supplied to the light propagating core. The light propagating core includes a plurality of Y-branching waveguides connected one after another to provide a multi-stage waveguide structure. A signal light inputted in the core is combined during the propagation through the core with the exciting light so that the signal light is amplified.

REFERENCES:
patent: 4515428 (1985-05-01), Findakly
patent: 4652076 (1987-03-01), Unger
patent: 4723824 (1988-02-01), Shaw et al.
patent: 4787692 (1988-11-01), Spanke
patent: 4826288 (1989-05-01), Mansfield et al.
"Optical Integrated Circuits", published Feb. 25, 1985, Ohm-sha, Tokyo, Japan.

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