Optical device for use as a multiplexer or demultiplexer in acco

Details Optical device for use as a multiplexer or demultiplexer in acco Optical device for use as a multiplexer or demultiplexer in acco

1983-04-01

1988-05-17

Sikes, William L.

Multiplex communications

Wide area network

Packet switching

350 9615, 350 9616, 35016220, 370 3, G02B 634, H04B 900

Patent

active

047446188

ABSTRACT:
An optical device for use either as a waveguide demultiplexer or a waveguide multiplexer characterized by a compact transparent member having a surface forming optical means such as an imaging mirror, an opposite surface portion having a diffraction grating formed thereon and first and second coupling surfaces so that light can be coupled into the member reflected by the mirror and the diffraction grating and then coupled out of the member. The device has various embodiments with different structures for the optical mirror and the transparent member, with the structure of the coupling surfaces being flat or curved, and with either flat or curved additional mirrors for reflecting the incoming and outgoing light adjacent to the coupling surfaces.

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