Abstract 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 ${C(\tau)}$ and the associated relaxation time ${T({C})}$ in the case of a stable locked phase resulting from the cross-correlation ${\lambda_q}$ 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.
Accepted manuscript online:
PACS:
42.50.Lc
(Quantum fluctuations, quantum noise, and quantum jumps)
Fund: Project supported by the Natural
Science Foundation of Yunnan Province, China (Grant No 2006A0002M).
Cite this article:
Li Yue-Hong(李跃宏) and Mei Dong-Cheng(梅冬成) Effects of correlations between the real and imaginary parts of quantum noise on intensity fluctuation for a saturation laser model 2008 Chin. Phys. B 17 76
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