Multiplexer and demultiplexer comprising optical switches and co

Details Multiplexer and demultiplexer comprising optical switches and co Multiplexer and demultiplexer comprising optical switches and co

1986-09-29

1988-08-23

Griffin, Robert L.

Multiplex communications

Wide area network

Packet switching

350 9613, H04B 900

Patent

active

047665882

ABSTRACT:
An arrangement for optical multiplexing and demultiplexing. The multiplexer comprises an optical output waveguide and a plurality of optical input waveguides coupled to the output waveguide by nonblocking optical switches. An electrical activation signal at a switch causes light entering the switch through the associated input waveguide to appear on the output waveguide. The activation signals are provided by a pulse traveling down an electrode past the optical switches, such that parallel input signals on the input waveguides are time multiplexed onto the output waveguide to produce a serial output signal. A similar arrangement is provided for a demultiplexer comprising one input waveguide and a plurality of output waveguides.

REFERENCES:
patent: 4198116 (1980-04-01), Papuchon
patent: 4608682 (1986-08-01), Nagashima et al.

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