Method and apparatus for controlling power of laser diodes

Details Method and apparatus for controlling power of laser diodes Method and apparatus for controlling power of laser diodes

2008-07-29

2008-07-29

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S038070

Reexamination Certificate

active

07406110

ABSTRACT:
A method and apparatus for controlling the power of laser diodes are provided. The apparatus includes an output voltage sensor, which senses output voltages of at least two laser diodes and outputs the output voltages to an optical power controller. The optical power controller generates control voltages for controlling the at least two laser diodes by performing proportional-integral (PI) control on error voltages between reference voltages and the output voltages received from the output voltage sensor.

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