| Effects of correlations between the real and imaginary parts of quantum noise on intensity fluctuation for a saturation laser model |
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| 引用本文： | 李跃宏,梅冬成. Effects of correlations between the real and imaginary parts of quantum noise on intensity fluctuation for a saturation laser model[J]. 中国物理 B, 2008, 17(1): 76-79 |
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| 作者姓名： | 李跃宏 梅冬成 |
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| 作者单位： | Department of Physics, Yunnan University, Kunming 650091, China;Department of Physics, Yunnan University, Kunming 650091, China |
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| 基金项目： | Project supported by the NaturalScience Foundation of Yunnan Province, China (Grant No 2006A0002M). |
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| 摘 要： | This paper studies the effects of cross-correlations between the real and imaginary parts of quantum noise on the laser intensity in a saturation laser model. It derives the analytic expressions of the intensity correlation function C（τ） and the associated relaxation time T（C） in the case of a stable locked phase resulting from the cross-correlation λq between the real and imaginary parts of quantum noise. Based on numerical computations it finds that the presence of cross correlations between the real and imaginary parts of quantum noise slow down the decay of intensity fluctuation, i.e., it causes the increase of intensity fluctuation.
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| 关 键 词： | 饱和激光模型 关联噪音 关联功能 光学 |
| 收稿时间： | 2007-04-10 |
| 修稿时间： | 2007-05-17 |
Effects of correlations between the real and imaginary parts of quantum noise on intensity fluctuation for a saturation laser model |
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| Li Yue-Hong and Mei Dong-Cheng. Effects of correlations between the real and imaginary parts of quantum noise on intensity fluctuation for a saturation laser model[J]. Chinese Physics B, 2008, 17(1): 76-79 |
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| Authors: | Li Yue-Hong and Mei Dong-Cheng |
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| Affiliation: | Department of Physics, Yunnan University, Kunming 650091, China |
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| Abstract: | This paper studies the effects of cross-correlations between thereal and imaginary parts of quantum noise on the laser intensity ina saturation laser model. It derives the analytic expressions of theintensity correlation function ${C(tau)}$ and the associatedrelaxation time ${T({C})}$ in the case of a stable locked phaseresulting from the cross-correlation ${lambda_q}$ between the realand imaginary parts of quantum noise. Based on numericalcomputations it finds that the presence of cross correlationsbetween the real and imaginary parts of quantum noise slow down thedecay of intensity fluctuation, i.e., it causes the increase ofintensity fluctuation. |
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| Keywords: | saturation laser model correlated noises correlation function |
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