Abstract
On the basis of calculating the steady-state meannormalized intensity fluctuation of a signal-mode laser system driven byboth colored pump noise with signal modulation and the quantum noise withcross-correlation between its real and imaginary parts, we analyze theinfluence of modulation signal, noise, and its correlation form on thestatistical fluctuation of the laser system. We have found that when theamplitude of modulation signal weakens and its frequency quickens, thestatistical fluctuation will reduce rapidly. The statistical fluctuation ofthe laser system can be restrained by reducing the intensity of pump noiseand quantum noise. Moreover, with prolonging of colored cross-correlationtime, the statistical fluctuation of laser system experiences a repeatedchanging process, that is, from decreasing to augmenting, then todecreasing, and finally to augmenting again. With the decreasing of thevalue of cross-correlation coefficient, the statistical fluctuation willdecrease too. When the cross-correlation form between the real part andimaginary part of quantum noise is zero correlation, the statisticalfluctuation of laser system has a minimum. Compared with the influenceof intensity of pump noise, the influence of intensity of quantum noise onthe statistical fluctuation is smaller.
Published Version
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