Optical frequency multiplex carrier control system

Details Optical frequency multiplex carrier control system Optical frequency multiplex carrier control system

1993-10-13

1995-02-07

Chilcot, Jr., Richard E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359187, 25022726, 356308, 324 7619, H04J 1402

Patent

active

053879929

ABSTRACT:
An optical frequency multiplex carrier control system which permits high-accuracy, high-speed stabilization control of the frequency of an optical signal. Based on the fact that the time waveform of the output signal from scanning type Fabry-Perot which receives the output optical signal from an optical frequency multiplexer is composed of pulse signals corresponding to an optical frequency standard and spectrum multiplex carriers of the output optical signal, the time intervals between the pulse corresponding to the optical frequency standard and pulses corresponding to the spectra of a scanning signal and each multiplexed carrier are measured by a counter having a high-accuracy clock, and variations in the optical frequency scanning region of the scanning type Fabry-Perot and in each carrier frequency with respect to the optical frequency standard are detected by hardware, with high accuracy, as variations in the pulse intervals, thereby stabilizing the frequencies of the multiplexed optical carriers.

REFERENCES:
patent: 4222630 (1980-09-01), Delienieres
patent: 4918700 (1990-04-01), Gambini
Eng et al., "Star-Counter-Based optical Cross-Connect Switch experiments with turnable receivers", IEEE Journal on Selected Areas in Communications, vol. 8, No. 6, Aug. 1990, pp. 1026-1031.

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