Chin. Phys. Lett.  2003, Vol. 20 Issue (10): 1681-1684    DOI:
Original Articles |
Effects of Correlations Between the Real and Imaginary Parts of Quantum Noise on Intensity Fluctuation for a Single-Mode Laser
XIE Chong-Wei;MEI Dong-Cheng
Department of Physics, Yunnan University, Kunming 650091
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XIE Chong-Wei, MEI Dong-Cheng 2003 Chin. Phys. Lett. 20 1681-1684
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Abstract We study the effects of correlations between the real and imaginary parts of quantum noise on the intensity fluctuation for a single-mode laser. The analytic expressions of the intensity correlation function C(τ) and the associated relaxation time Tc in the case of a stable locked phase resulting from the cross-correlation λq between the real and imaginary parts of quantum noise are derived by means of projection operator method. Based on numerical computations it is found that the presence of cross-correlations between the real and imaginary parts of quantum noise causes the intensity fluctuation to increase. A slowing-down phenomenon exists in the sense that Tc increases as a function of |λq|. Thus the decay of intensity fluctuation becomes slower.
Keywords: 05.40.-a     
Published: 01 October 2003
PACS:  05.40.-a (Fluctuation phenomena, random processes, noise, and Brownian motion)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2003/V20/I10/01681
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