Optical demultiplexing system

Details Optical demultiplexing system Optical demultiplexing system

1993-03-30

1995-05-16

Moore, David K.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359123, 359138, H04J 1408

Patent

active

054166250

ABSTRACT:
Optical demultiplexing system, wherein from an optical carrier modulated by a TDM data flow the wanted tributary is extracted as an optical signal. The system makes use of a semiconductor optical amplifier, whose gain is modulated due to saturation effect. The amplifier receives both the modulated optical carrier and one or a plurality of sampling optical carriers, with wavelengths different from that of the modulated carrier. One or a plurality of optical filters supply at the output the tributaries by extracting from the amplifier output the sampling carriers modulated by data signals.

REFERENCES:
patent: 4726010 (1988-02-01), Ali et al.
patent: 5175777 (1992-12-01), Bottle
patent: 5208691 (1993-03-01), Nishio
P. B. Hansen; "Optical Demultiplexing At 6 Gb/s Using A Semiconductor . . . " IEE Transactions Photonics Technology Letter, vol. 3 #11, Nov. 1991, 3 pages.
R. S. Tucker..; "16 Gbit/s Fibre Transmission Experiment Using Optical Time-Division Multiplexing" Electronic Letters, vol. 23 No. 24, pp. 1270-1271.
P. A. Andrekson..; "All-Optical Demultiplexing At 16 Gbit/s Using Four-Wave Mixing", Technical Digest of OFC'91, San Diego 1991, pp. 19-22.

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