光学参量振荡器泵浦精细度对孪生光束量子关联的影响
Dependence of quantum correlations of twin beams on pump finesse of optical parametric oscillator
摘要：
用半经典分析方法研究了孪生光束的量子关联与光参量振荡器泵浦精细度的关系。研究发现，当朗之万方程中包含光腔内产生的寄生泵浦相位噪声和输入泵浦场的过量噪声时，工作在阈值以上的光参量振荡器输出信号光和闲频光的相位和相关依赖于泵浦场的精细度。理论计算可以定量地解释以前的实验结果。
英文摘要：
The dependence of quantum correlation of twin beams on the pump finesse of an optical parametric oscillator is studied with a semi-classical analysis. It is found that the phase-sum correlation of the output signal and idler beams from an optical parametric oscillator operating above threshold depends on the finesse of the pump field when the spurious pump phase noise generated inside the optical cavity and the excess noise of the input pump field are involved in the Langevin equations. The theoretical calculations can explain the previously experimental results, quantitatively.
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