Multiplex communications – Wide area network – Packet switching
Patent
1981-02-03
1983-06-14
Lee, John D.
Multiplex communications
Wide area network
Packet switching
350 37, 370 3, G02B 532
Patent
active
043879551
ABSTRACT:
A multiplexer/demultiplexer having a holographically formed reflective grating incorporated therein. In operation as a demultiplexer a single signal having a plurality of wavelengths impinges upon the holographic reflective grating in an appropriate manner and is separated into a plurality of signals, each being of a different one of the wavelengths. In the multiplexing mode of operation, a plurality of signals, each being of a different wavelength impinges upon the holographic reflective grating in an appropriate manner and emerges therefrom as a single signal having all of the different wavelengths.
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Horner Joseph L.
Ludman Jacques E.
Mikes Thomas L.
Erlich Jacob N.
Lee John D.
Singer Donald J.
The United States of America as represented by the Secretary of
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