Semiconductor laser control circuit

Details Semiconductor laser control circuit Semiconductor laser control circuit

1988-10-18

1989-07-04

Davie, James W.

Coherent light generators

Particular beam control device

Optical output stabilization

250205, 372 38, H01S 313

Patent

active

048457205

ABSTRACT:
Herein disclosed is a semiconductor laser control circuit in which: (i) the peak and bottom values of a pulse light can be controlled independently and precisely and set at an optical power value necessary for a high speed; and (ii) the abnormality of the output light of the semiconductor laser can be detected to prevent the stored content of an optical disc, for example, from being broken.

REFERENCES:
patent: 4718068 (1988-01-01), Yoshikawa
patent: 4733398 (1988-03-01), Shibagaki et al.
patent: 4734914 (1988-03-01), Yoshikawa
patent: 4754460 (1988-06-01), Kimura et al.

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