Coherence reduction of diode lasers

Coherent light generators – Particular component circuitry – Controlling current or voltage to laser

Reexamination Certificate

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C372S029015

Reexamination Certificate

active

07668216

ABSTRACT:
The invention provides a method of reducing a time-averaged coherence of laser radiation for current-tunable lasers, and a laser apparatus realizing the method, by modulating the laser drive current using a modulation function optimized for obtaining a pre-determined time-averaged spectral profile of the laser radiation. In a preferred embodiment, the pre-determined time-averaged spectral profile has a substantially Gaussian shape. The method is described in reference to laser diodes.

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