| Cooperative Effect Radiation Loss of Optical Pump Solid Laser |
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| 引用本文： | NING Guo-bin,SONG Gui-cai (Changchun University of Science and Technology,Changchun 130022,China). Cooperative Effect Radiation Loss of Optical Pump Solid Laser[J]. 光机电信息, 2006, 0(6): 41-45 |
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| 作者姓名： | NING Guo-bin SONG Gui-cai (Changchun University of Science and Technology Changchun 130022 China) |
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| 作者单位： | Changchun University of Science and Technology，Changchun 130022，China |
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| 摘 要： | 1 Introduction For increasing the output energy of laser, the pumping power must be enhanced. But the cooperative effect will arise and cause spontaneous radiation light in laser medium sample when the pumping power is high e- nough without the resonator. The spontaneous radiation light is coherent light between laser and fluorescent. It will compete the upper energy level population with ex- cited radiation, and the loss increase. In solid laser medium, such as Nd∶YAG, the Nd ion densityi…
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| 关 键 词： | 激光物理 麦克斯韦-布洛赫方程 辐射损耗 合作效应 固体激光器 光泵 |
Cooperative Effect Radiation Loss of Optical Pump Solid Laser |
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| NING Guo-bin SONG Gui-cai. Cooperative Effect Radiation Loss of Optical Pump Solid Laser[J]. OME Information, 2006, 0(6): 41-45 |
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| Authors: | NING Guo-bin SONG Gui-cai |
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| Affiliation: | Changchun University of Science and Technology, Changchun 130022,China |
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| Abstract: | The cooperative effect radiation loss of the optical pumped solid laser has been investigated. The characteristics and the cause of coherent spontaneous are discussed using Maxwell-Bloch equation in the paper. By laser rate equation, the expression of upper energy level lifetime shortening due to the cooperative effect radiation is given. The influence of the cooperative effect on laser threshold and the loss are analyzed. By a series of experiments, the relation ship of coherent spontaneous radiation intensity and direction with reversal population and the power of optical pump are obtained. |
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| Keywords: | laser physics Maxwell-Bloch equation coherent spontaneous radiation loss |
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