System for the optical switching of frequency multiplexed signal

Details System for the optical switching of frequency multiplexed signal System for the optical switching of frequency multiplexed signal

1991-07-15

1993-02-23

Brinich, Stephen

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

372 8, 385 17, H04J 1402

Patent

active

051895420

ABSTRACT:
The system disclosed includes a light source (12) able to emit an intense, coherent, monochromatic beam, called the control beam, whose frequency is equal to the center optical frequency of one of several frequency multiplexed signals, which has been selected, an optical coupler (14) for coupling the signals and the control beam and an optical switching device (16) having an active material with a non-linear optical response, whose passband is narrower than the intervals separating the frequency band occupied by the selected siganl. The device receives the light from the optical coupler and supplies a beam reproducing the information of the selected signal. The invention can be used in telecommunications.

REFERENCES:
patent: 4807227 (1989-02-01), Fujiwara et al.
Article by H. S. Hinton, IEEE Journal on Selected Areas in Communication, vol. 6, No. 7, Aug. 1988, pp. 1209-1226.
Article by S. Suzuki et al. IEEE Journal of Lightwave Technology, vol. 8, No. 5, May 5, 1990, pp. 660-666.
Article by H. Kawaguchi et al. IEEE Journal of Quantum Electronics, vol. 24, No. 11, Nov. 1988, pp. 2153-2159.
Article by K. Y. Eng, Proceedings of the Fourth Tirrenia International Workshop on Digital Communications, Tirrenia, Sep. 19-23, 1989, pp. 313-323.

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