Circuit arrangement for actuating semiconductor lasers

Details Circuit arrangement for actuating semiconductor lasers Circuit arrangement for actuating semiconductor lasers

1984-07-06

1987-06-16

Davie, James W.

Coherent light generators

Particular component circuitry

Optical pumping

372 29, H01S 3096

Patent

active

046740937

ABSTRACT:
A circuit arrangement for actuating semiconductor lasers with the transmitted optical power being controlled with the aid of a photodiode optically coupled to the laser radiation, whose amplified photoelectric current controls the current of the laser in such a way that its radiation capacity remains constant, is to be improved, in particular, such that the circuitry expenditure is low, the band width large and the operating point of the laser easy to set, and, furthermore, such that a digital or HF signal for modulation of the laser radiation can be coupled without difficulty.

REFERENCES:
patent: 3898583 (1975-08-01), Shuey
patent: 3909745 (1975-09-01), Dye
patent: 4109217 (1978-08-01), Brackett et al.
patent: 4339822 (1982-07-01), Kolodzey
"CQL10 Semiconductor Laser for Information Readout," Electronic Components and Applications, vol. 3, No. 1, (Nov. 1980), pp. 2-5.
Michael Hoiz et al, "Optischer Repeater fur 280 Mbit/s," Wiss.Ber. AEG-Telefunken 53 (1980), pp. 56-61.

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