| 上、下能级都有泵浦的激光场运动方程 |
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| 引用本文： | 华文玉.上、下能级都有泵浦的激光场运动方程[J].南京理工大学学报(自然科学版),1987(4). |
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| 作者姓名： | 华文玉 |
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| 作者单位： | 华东工学院应用物理系 |
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| 摘 要： | 本文采用密度矩阵方法,在计及激光系统中上、下能级都有泵浦和场的损耗的情况下,导出了激光场的运动方程和稳态解。讨论了阈值条件及平均光子数。发现在此情况下输出光强与上能级泵浦率为r_a-r_b,下能级泵浦率为零时相同、但光子统计分布与“相干态”情况偏离更大。
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| 关 键 词： | 激光理论 激光抽运 抽运源 原了能级 密度矩阵 |
The Leser Field Equations of Motion with pumped Upper and Lower Lerels |
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| Hua Wenyu.The Leser Field Equations of Motion with pumped Upper and Lower Lerels[J].Journal of Nanjing University of Science and Technology(Nature Science),1987(4). |
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| Authors: | Hua Wenyu |
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| Abstract: | In this paper laser field equation of motion solution is drived by density matrix method and stead state solution is given, taking intoaccount that both the upper and lower levels are pumped and have dissipationof field in laser system.The threshold condition and average photon number arediscussed. It is showed that the output intensity of laser is the same to thatof the pump rate of upper and lower level equal respectively r_a-r_b and zero.However, photon statistic distribution deviates further from that of thecoherent state. |
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| Keywords: | Laser theory Laser Pumping pumping source Atomic energy level Density matrix |
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