Acta Physica Sinica

Effects of pump noise and quantum noise with real and imaginary parts correlated on the dynamic properties of a single-mode laser

Cheng Qing-Hua, Cao Li, Wu Da-Jin, Wang Jun, 华中科技大学激光技术国家重点实验室，武汉 430074;荆州师范学院物理系，荆州 434100

Published Jan 1, 2004• 1 citation

Abstract

Adopting the linear approximation method, a loss model for a single-mode laser driven by pump noise and quantum noise whose real and imaginary parts are correlated is studied. We investigated the intensity correlation function, which describes the dynamic property of a laser and varies with time. Moreover, the valid range for the linear approximation method is obtained, and the effects of the intensities of the pump noise and quantum noise on the variance of the laser intensity, and the correlation coefficient between the real and imaginary parts of the quantum noise, are discussed in detail. We find that the valid range is extended in the case of small quantum noise and far form threshold, and it is the largest in the case of small quantum noise, far form threshold and no correlation between the real and imaginary parts of the quantum noise.

DOI: 10.7498/aps.53.1675

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