Circuit and method for driving laser diode

Details Circuit and method for driving laser diode Circuit and method for driving laser diode

1997-09-24

2000-07-18

Healy, Brian

Coherent light generators

Particular component circuitry

Optical pumping

372 26, 372 29, 372 33, 372 43, H01S 300

Patent

active

060917474

ABSTRACT:
A laser diode drive circuit comprising a laser diode; a drive pulse current source for emitting light or not emitting light of the laser diode according to an input signal; and a biasing unit for optimally operating the laser diode, the biasing unit having a bias voltage source for applying a bias voltage to the laser diode, which bias voltage can feed an optimum bias current to the laser diode. The laser diode drive circuit can maintain a bias current at a predetermined value with high precision and with high stability.

REFERENCES:
patent: 4612671 (1986-09-01), Giles
patent: 4806873 (1989-02-01), Nagano
patent: 5315606 (1994-05-01), Tanaka
patent: 5736844 (1998-04-01), Yanagisawa
patent: 5761230 (1998-06-01), Oono et al.

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