Semiconductor laser drive apparatus

Details Semiconductor laser drive apparatus Semiconductor laser drive apparatus

1991-01-18

1993-01-26

Epps, Georgia Y.

Coherent light generators

Particular component circuitry

Optical pumping

372 26, 372 27, 372 29, H01S 300

Patent

active

051827565

ABSTRACT:
A semiconductor laser drive apparatus having a semiconductor laser source (LD) for generating a laser light; a switching means (Q2) for supplying the semiconductor laser source (LD) with a first modulated signal (S2) for driving the semiconductor laser source (LD) on the basis of a second modulated signal (S1); a current source (6) for supplying the switching means (Q2) with a current for producing the first modulated signal (S2) in the switching means (Q2); and a bias adjust means (VR) for adjusting a bias direct-current to be added to the first modulated signal (S2).

REFERENCES:
patent: 3898583 (1975-08-01), Shuey
patent: 4009385 (1977-02-01), Sell
patent: 4539686 (1985-09-01), Bosch et al.
patent: 4799224 (1989-01-01), Bottacchi et al.
patent: 4868836 (1987-09-01), Howard
patent: 4924470 (1990-05-01), Ries
patent: 4995105 (1991-02-01), Wechsler

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