Integrated optical multiplexer-and-demultiplexer

Details Integrated optical multiplexer-and-demultiplexer Integrated optical multiplexer-and-demultiplexer

1996-07-19

1998-08-25

Ullah, Akm E.

Optical waveguides

Integrated optical circuit

G02B 612

Patent

active

057991189

ABSTRACT:
An integrated optical multiplexer-and-demultiplexer comprising an arrayed waveguide having an optical delay portion imparting an optical band-pass characteristic, a lens secured to one end of the arrayed waveguide, and a diffraction grating opposing the lens. The optical delay portion is made of a light-transmitting medium selected from the group consisting of air and material composed of at least two substances exhibiting a minimum temperature coefficient to an optical length.

REFERENCES:
patent: 4715027 (1987-12-01), Mahapatra et al.
patent: 4739501 (1988-04-01), Fussganger
patent: 4993032 (1991-02-01), Bradley
patent: 5136671 (1992-08-01), Dragone
patent: 5355237 (1994-10-01), Lang et al.

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