Explanation of low-frequency relative intensity noise in semiconductor lasers

For the first time, the enhanced low-frequency relative intensity noise characteristics of semiconductor lasers is explained. It is shown, by multimode rate equation analysis, that the enhanced low-frequency noise is caused by coupling between longitudinal modes which can renormalize the resonance f...

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Bibliographic Details
Published in:Applied physics letters 1990-08, Vol.57 (9), p.849-851
Main Authors: SU, C. B, SCHLAFER, J, LAUER, R. B
Format: Article
Language:English
Subjects:
CONTROL
ENGINEERING
Exact sciences and technology
FLUCTUATIONS
FREQUENCY CONTROL
Fundamental areas of phenomenology (including applications)
LASERS
MODULATION
OPERATION
Optics
Physics
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
Semiconductor lasers
laser diodes
SIGNAL-TO-NOISE RATIO
SOLID STATE LASERS
TUNING
VARIATIONS 426002 > Engineering-- Lasers & Masers-- (1990-)
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Summary:For the first time, the enhanced low-frequency relative intensity noise characteristics of semiconductor lasers is explained. It is shown, by multimode rate equation analysis, that the enhanced low-frequency noise is caused by coupling between longitudinal modes which can renormalize the resonance frequency of the individual modes to very low values. It is further shown that a single-mode laser will also exhibit enhanced low-frequency noise unless the side-mode suppression is high.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.103385