Adjustable optical demultiplexer

Multiplex communications – Wide area network – Packet switching

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350 9616, 350 9618, 350 9615, 350347R, 350347V, 350352, 350374, 350395, 370 2, 370 3, G02B 634, G02F 113, H04B 900

Patent

active

047639695

ABSTRACT:
The invention relates to an optical demultiplexer whose "color band" is adjustable, so that the demultiplexer can always be adapted to future standards. The adjustment is performed either by tilting the optical grating with respect to the light beam incident thereon or by deflecting the light by means of a liquid crystal arranged in the light path.

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Soref et al., "Total Switching of . . . Device", Optics Lett., vol. 5, No. 4, 4/80, pp. 147-149.
Aoyama et al., "Low-Loss Optical Demultiplexer . . . Region", Applied Optics, vol. 18, No. 16, 8/79, pp. 2834-2836.
Opielka et al., "Low Loss Optical Y-Branch", Electronic Lett., vol. 15, No. 23, pp. 757-759.

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