Optical cross-connect system with space and wavelength division

Details Optical cross-connect system with space and wavelength division Optical cross-connect system with space and wavelength division

1994-04-18

1995-10-10

Moore, David K.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359123, 359128, 359139, H04J 1400, H04J 400

Patent

active

054575567

ABSTRACT:
In an optical cross-connect system, incoming and outgoing fiber optic trunks carrying WTDM signals are terminated to first inlet ports and first outlet ports of an optical space switch. A wavelength division demultiplexer is connected to a second outlet port of the optical space switch and a wavelength division multiplexer is connected to a second inlet port of the optical space switch. A wavelength-divided space switch has first inlet ports connected to the outputs of the wavelength division demultiplexer and first outlet ports connected to the inputs of the wavelength division multiplexer. A time division demultiplexer is connected to a second outlet port of the wavelength-divided space switch and a time division multiplexer is connected to a second inlet port of the wavelength-divided space switch. The outputs of the time division demultiplexer are connected to first inlet ports of a time switch and the inputs of the time division multiplexer are connected to first outlet ports of the time switch. The time switch has second inlet ports and second outlet ports connected to a switched network.

REFERENCES:
patent: 5005166 (1991-04-01), Suzuki et al.
patent: 5144465 (1992-09-01), Smith
patent: 5175777 (1992-12-01), Bottle
patent: 5303077 (1994-04-01), Bottle et al.

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