| 规则泵情况下激光的光子数分布 |
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| 引用本文： | 杨明,曹力,吴大进,李再光.规则泵情况下激光的光子数分布[J].华中科技大学学报(自然科学版),1998(Z2). |
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| 作者姓名： | 杨明 曹力 吴大进 李再光 |
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| 作者单位： | 华中理工大学激光国家重点实验室 |
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| 摘 要： | 利用光子数表象推导了泵噪声被抑制情况下的激光的光子数分布．它表明，在以往利用光子数表象计算光子数分布产生负几率的原因并不在该表象本身，而是因为截断了主方程所造成的．并在不截断主方程的基础上，导出了规则泵及原子自发辐射被抑制的激光系统的光子数分布的特征函数及分布函数．特征函数可被用来很方便地求解光子数分布的各阶矩．这一方法可推广到不完全规则泵和考虑原子自发辐射的情况．
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| 关 键 词： | 泵噪声抑制 光子数分布函数 特征函数 |
The Photon Number Distributions of the Lasers Generated by Regular Pumps |
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| Yang Ming,Cao Li,Wu Dejin,Li Zhaiguang.The Photon Number Distributions of the Lasers Generated by Regular Pumps[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1998(Z2). |
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| Authors: | Yang Ming Cao Li Wu Dejin Li Zhaiguang |
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| Institution: | Yang Ming Cao Li Wu Dejin Li Zhaiguang |
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| Abstract: | The photon number distribution of the lasers under pump noise suppression is derived in the photon number representation. The derivation shows that the negative probability in the calculation of the photon number distribution by the photon number representation is not caused by the representation itself, but by the truncation of the master equation. The characteristic function and the distribution one of the photon number distribution of the laser system with regular pump and with spontaneous atomic decays being suppressed are derived without truncating the master equator. It is convenient to use the characteristic function to calculate any order of the moment of the photon number distribution. This method can be used to some more general cases. |
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| Keywords: | pump noise suppression photon number distribution characteristic function |
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