Method for selecting a self pulsating semiconductor laser

Details Method for selecting a self pulsating semiconductor laser Method for selecting a self pulsating semiconductor laser

1994-06-06

1995-11-28

Bovernick, Rodney B.

Coherent light generators

Particular active media

Semiconductor

372 44, 372 25, 372 30, H01S 318

Patent

active

054714940

ABSTRACT:
A method for selecting a semiconductor laser is provided which contributes to improved productivity of a highly reliable semiconductor laser of prolonged lifetime, and which includes the steps of: (a) measuring highest peak intensity, Ia, and next highest peak intensity, Ib, of an interference fringes pattern of laser radiation of each semiconductor laser using an interferometer to find a damping ratio of visibility of the interference fringes pattern, .gamma.=Ib/Ia; and (b) selecting a semiconductor exhibiting self-pulsation by selecting a semiconductor laser which emits laser radiation whose damping ratio of visibility, .gamma., is 0.5 or less.

REFERENCES:
patent: 5212704 (1993-05-01), Chen et al.
patent: 5235609 (1993-08-01), Uchida et al.

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