Driver circuit and driving method for semiconductor laser

Details Driver circuit and driving method for semiconductor laser Driver circuit and driving method for semiconductor laser

2007-01-02

2007-01-02

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S029015, C372S038070

Reexamination Certificate

active

10015616

ABSTRACT:
A driver circuit for a semiconductor laser of the invention comprises: first bias current supply means for supplying, at least at a time of non-output of data, a first bias current to an LD; signal processing means for generating a pulse current control signal in which a burst data signal is delayed, and generating a second bias current control signal which rises more rapidly by a predetermined time than the rise of burst data included in the pulse current control signal; pulse current supply means for supplying to the LD a pulse current generated in accordance with the pulse current control signal; and second bias current supply means for supplying to the LD a second bias current generated in accordance with the second bias current control signal.

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EP Search Report for corresponding application No. 99933257.0-2222 dated Aug. 12, 2005.

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