Photoreceptor for frequency-modulated optical signals

Details Photoreceptor for frequency-modulated optical signals Photoreceptor for frequency-modulated optical signals

1990-09-14

1991-11-05

Sikes, William L.

Coherent light generators

Particular beam control device

Modulation

372 18, 372 38, 372 44, 372 96, 359189, H01S 310

Patent

active

050635670

ABSTRACT:
Photoreceptor for frequency-modulated optical signals. The photoreceptor consists of a semiconductor laser (10) fed clearly beyond the threshold (12). The optical signal (20) to be demodulated is injected into the laser. The voltage (V) taken at the terminals of the latter reflects the frequency difference between the frequency of the signal (F1, F2) and the actual frequency (Fo) of the laser.

REFERENCES:
patent: 3976873 (1976-08-01), Bottka et al.
patent: 4751705 (1988-06-01), Hadley et al.
patent: 4755016 (1988-07-01), DeLoach, Jr. et al.
patent: 4805237 (1989-02-01), Donald et al.
patent: 4821273 (1989-04-01), Hori
patent: 4862467 (1989-08-01), Carter et al.
patent: 4903341 (1990-02-01), Rice
patent: 4930133 (1990-05-01), Babbitt et al.
Applied Physics Letters, vol. 54, No. 11, 3/13/89, pp. 984-986 (13 Mar. 1989).
IEEE Journal of Quantum Electronics, vol. QE-17, No. 7, 7/81, pp. 1216-1225 (1981).

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