Low-frequency fluctuation in multimode semiconductor laser subject to optical feedback
Chinese Optics Letters, Vol. 6, Issue 2, pp. 120-123 (2008)
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Abstract
Dynamics of a semiconductor laser subject to moderate optical feedback operating in the low-frequency fluctuation regime is numerically investigated. Multimode Lang-Kobayashi (LK) equations show that the low-frequency intensity dropout including the total intensity and sub-modes intensity is accompanied by sudden dropout simultaneously, which is in good agreement with experimental observation. The power fluctuation is quite annoying in practical applications, therefore it becomes important to study the mechanism of power fluctuation. It is also shown that many factors, such as spontaneous emission noise and feedback parameter, may influence power fluctuation larger than previously expected.
© 2008 Chinese Optics Letters
OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(140.5960) Lasers and laser optics : Semiconductor lasers
(270.2500) Quantum optics : Fluctuations, relaxations, and noise
(300.3700) Spectroscopy : Linewidth
Citation
Xu Zhang, Huiying Ye, and Zhaoxin Song, "Low-frequency fluctuation in multimode semiconductor laser subject to optical feedback," Chin. Opt. Lett. 6, 120-123 (2008)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-6-2-120
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