| Original Articles |
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General Laser Intensity Langevin Equation in a Single-Mode
Laser Model |
| KE Sheng-Zhi1,3;CAO Li1,2,3;WU Da-Jin2,3;YAO Kai-Lun1,2,3 |
| 1State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074
2CCAST (World Laboratory), P. O. Box 8730, Beijing 100080
3Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
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| Cite this article: |
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KE Sheng-Zhi, CAO Li, WU Da-Jin et al 2001 Chin. Phys. Lett. 18 370-372 |
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Abstract A two-dimensional single-mode laser model with cross-correlations between the real and imaginary parts of the quantum noise as well as the pump noise is investigated. The general closed form of the laser intensity Langevin equation (GILE) is obtained under a stable locked phase resulting from the cross-correlation λq between the real and imaginary parts of the quantum noise. Because of the presence of a new term containing λq, we can unify the two opposite intensity Langevin equations which correspond to the two special cases for |λq| → 0 and |λq| → 1 in the GILE. It is expected that the transient and stationary properties of the laser model can be changed qualitatively when λq varies.
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| Keywords:
42.55.Ah
05.40.-a
42.60.Mi
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Published: 01 March 2001
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| PACS: |
42.55.Ah
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(General laser theory)
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05.40.-a
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(Fluctuation phenomena, random processes, noise, and Brownian motion)
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42.60.Mi
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(Dynamical laser instabilities; noisy laser behavior)
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