Method for frequency stabilization of a semiconductor laser comp

Details Method for frequency stabilization of a semiconductor laser comp Method for frequency stabilization of a semiconductor laser comp

1988-08-04

1990-01-23

Gonzalez, Frank

Coherent light generators

Particular beam control device

Optical output stabilization

372 94, H01S 313

Patent

active

048963275

ABSTRACT:
A method for frequency stabilization of a semiconductor laser having a coupled, external ring resonator, which stabilizes the emission frequency of the semiconductor utilizes a stabilizing of the free spectral range and the resonant frequencies of the ring resonator in order to correct for changes due to temperature fluctuations. To accomplish this, a shift in resonant frequency from a predetermined value and a shift in the free spectral range from a rated value is compensated by utilizing a phase modulator to act on the resonator to shift the frequencies back to the predetermined frequencies.

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