Short coupled cavity laser

Details Short coupled cavity laser Short coupled cavity laser

1983-02-25

1985-07-09

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

372 19, 372 92, H01S 319

Patent

active

045286701

ABSTRACT:
Single longitudinal mode operation is achieved and maintained under CW and high speed (Gbps) current modulation conditions by a short coupled cavity laser including a short cavity semiconductor laser having two parallel mirror facets and a reflective surface spaced apart from and in predetermined relationship with one of the mirror facets. A short external cavity resonator is formed between the one mirror facet and the reflective surface. In general, the laser cavity length is related to the external cavity resonator length by the equation, nL=md, where nL is the effective optical length of the injection laser, d is the length of the external cavity resonator, and m is a positive number preferably between 2 and 10.

REFERENCES:
Kanada et al., "Single-Mode Operation of a Modulated Laser Diode with a Short External Cavity", Optics Communications, vol. 31, No. 1, Oct. 1979, pp. 81-84.
Bessonov et al., "Injection Heterolaser with a Short Resonator", Sov. J., Quantum Electron, 9(2), Feb. 1979, pp. 243-245.
"Discrimination . . . Fabry-Perot Resonator", BSTJ, vol. 41, p. 453, by D. A. Kleinman, et al., dated (1961).
"Single-Mode . . . Hemispherical Resonators", Opt. Commun., vol. 13, No. 2, Feb. 1975, by C. Voumard et al., p. 130.
"Resonance . . . External Resonators", Appl. Phys. 12, by C. Voumard et al., p. 369.

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