Effect of cross saturation on frequency fluctuations in a nearly single-mode semiconductor laser

The effect of side-mode cross-saturation on the frequency noise of the main mode of a nearly-single-mode laser is investigated by considering the Langevin rate equations which contain the nonlinear gain with both the self-saturation and cross-saturation terms. When cross-saturation is stronger than...

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Bibliographic Details
Published in:IEEE photonics technology letters 1991-03, Vol.3 (3), p.204-206
Main Authors: Gray, G.R., Agrawal, G.P.
Format: Article
Language:English
Subjects:
Fluctuations
Frequency
Laser modes
Laser noise
Low-frequency noise
Nonlinear equations
Optical fiber communication
Optical noise
Semiconductor device noise
Semiconductor lasers
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Summary:The effect of side-mode cross-saturation on the frequency noise of the main mode of a nearly-single-mode laser is investigated by considering the Langevin rate equations which contain the nonlinear gain with both the self-saturation and cross-saturation terms. When cross-saturation is stronger than self-saturation, the frequency noise of the main mode is found to be significantly enhanced in the low-frequency regime (
ISSN:1041-1135
1941-0174
DOI:10.1109/68.79754