Optical communications system using frequency shift keying

Details Optical communications system using frequency shift keying Optical communications system using frequency shift keying

1983-02-25

1986-01-14

Davie, James W.

Coherent light generators

Particular beam control device

Tuning

372 26, 372 44, 372 50, H01S 319

Patent

active

045649464

ABSTRACT:
Frequency shift keying optical communications devices using a cleaved coupled cavity laser are described. The cleaved coupled cavity laser comprises first and second laser diode sections which are mutually optically coupled to each other and means for adjusting the refractive index of the first and second sections relative to each other. The cleaved coupled cavity laser is part of a light source which further comprises means for selecting at least one desired output frequency from a group of at least two output frequencies.

REFERENCES:
Chang et al., "Amplification in Cleaved-Substrate Lasers" IEEE Journal of Quantum Electronics, vol. QE-16, No. 9, Sep. 1980, pp. 997-1001.
Allen et al., "Single Frequency Injection Laser Diodes for Integrated Optics and Fiber Optics Applications", SPIE vol. 157, 1978, pp. 110-117.
S. Saito et al., "Optical FSK Heterodyne Detection Experiments Using Semiconductor Laser Transmitter and Local Oscillator," IEEE Journal of Quantum Electronics, vol. QE-17, No. 6, Jun. 1981, pp. 935-941.
S. M. A. Hamdy et al., "Comparison of Modal Analysis and Equivalent Circuit Representation of E-Plane Arm of the Jerusalem Cross," Electronics Letters, vol. 18, No. 2, Jan. 21, 1982, pp. 94-95.

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