Multichannel wavelength multiplexer/demultiplexer

Details Multichannel wavelength multiplexer/demultiplexer Multichannel wavelength multiplexer/demultiplexer

1987-04-02

1988-05-10

Masinick, Michael A.

Multiplex communications

Wide area network

Packet switching

370 2, 455616, 350401, 350403, H04B 900, H04J 108, G02B 530

Patent

active

047440759

ABSTRACT:
An n channel birefringent multiplexer/demultiplexer consists of log.sub.2 n sequences of birefringent crystal elements in Solc-type filter configuration. The configuration of polarizing beam splitters have one such beam splitter before the first sequence, one such beam splitter after the last sequence, and solely one such beam splitter between adjacent sequences of birefringent elements. With such multiplexer/demultiplexer horizontally and vertically polarized components of an input beam are separated at the input beam splitter, independently traverse all of the sequences of the birefringent elements and are recombined to form output beams only upon reaching the output beam splitter.

REFERENCES:
patent: 2182142 (1939-12-01), Ball et al.
patent: 3532890 (1970-10-01), Denton
patent: 3584221 (1971-06-01), Furukawa
patent: 4566761 (1986-01-01), Carlsen et al.
patent: 4685773 (1987-08-01), Carlsen et al.

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