Bi-directional optical cross-connect device

Details Bi-directional optical cross-connect device Bi-directional optical cross-connect device

2007-11-20

2007-11-20

Leung, Christina (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S050000

Reexamination Certificate

active

10712962

ABSTRACT:
Disclosed is an optical cross-connect device for communication between first and second optical networks communicating with each other using forward and backward optical signals each including of a plurality of channels. The device includes a first circulating part having first through fourth ports configured to output an optical signal, which is input to a higher-order port thereof, from a lower-order port thereof arranged adjacent to the higher-order port. The first circulating part is connected at the first and third ports thereof to a first optical network. A second circulating part has first through fourth ports configured to output an optical signal, which is input to a higher-order port thereof, from a lower-order port thereof arranged adjacent to the higher-order port. A first reflecting part is connected to respective second ports of the first and second circulating parts, and adapted to selectively reflect each channel of a forward optical signal which is input thereto or allow the channel to pass therethrough, and a second reflecting part is connected to respective fourth ports of the first and second circulating parts, and adapted to selectively reflect each channel of a backward optical signal which is input thereto or allow the channel to pass therethrough.

REFERENCES:
patent: 5647035 (1997-07-01), Cadeddu et al.
patent: 6067389 (2000-05-01), Fatehi et al.

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