Semiconductor laser apparatus

Details Semiconductor laser apparatus Semiconductor laser apparatus

1988-05-25

1989-06-27

Davie, James W.

Coherent light generators

Particular beam control device

Optical output stabilization

372 49, H01S 313

Patent

active

048436100

ABSTRACT:
A semiconductor laser apparatus which detects a laser beam from a semiconductor laser element by using a light-receiving element so as to perform automatic light power control, the temperature characteristic of the power of a laser beam which is transmitted through an end face protection film of the semiconductor laser element and the detected power of the light-receiving element have inverse characteristics relative to each other, and variations in intensity of the output light due to changes in temperature are minimized.

REFERENCES:
patent: 4599729 (1986-07-01), Sasaki et al.
patent: 4656638 (1987-04-01), Tihany et al.

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