| Cr4+∶YAG固体激光器效率的理论分析 |
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| 引用本文： | 余先伦,杨伯君,于丽.Cr4+∶YAG固体激光器效率的理论分析[J].光子学报,2006,35(2):161-165. |
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| 作者姓名： | 余先伦 杨伯君 于丽 |
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| 作者单位： | 1. 重庆三峡学院电子工程系,重庆万州,404000
2. 北京邮电大学理学院,北京,100876 |
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| 基金项目： | 国家自然科学基金项目（60378011）和北京市教委共建项目计划（XK100130437）资助. |
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| 摘 要： | 对Cr4+∶YAG固体激光器的吸收效率、量子效率、储存效率和提取效率等本征效率进行了分析.Cr4+∶YAG晶体的吸收截面、发射截面、上能级寿命和激活离子浓度等对激光器的本征效率有很大的影响.提高Cr4+∶YAG晶体的光学品质和激活离子的掺杂浓度，优化泵浦源的运转波长和激光腔的设计都能显著改善Cr4+∶YAG固体激光器的本征效率.
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| 关 键 词： | 激光技术 固体激光器 Cr4+∶YAG晶体 本征效率 |
| 收稿时间： | 2004-11-15 |
| 修稿时间： | 2004年11月15 |
The Theoretic Analysis on the Efficiency in the Cr4+:YAG Solid-state Laser |
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| Yu Xianlun,Yang Bojun,Yu Li.The Theoretic Analysis on the Efficiency in the Cr4+:YAG Solid-state Laser[J].Acta Photonica Sinica,2006,35(2):161-165. |
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| Authors: | Yu Xianlun Yang Bojun Yu Li |
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| Institution: | 1 Department of Electronics Engineering, the Chongqing Three Gorges University, Wanzhou in Chongqing 404000; 2 Department of Physics, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876 |
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| Abstract: | The efficiency of the solid-state laser is one of the key technolygy in practice. The intrinsic efficiency of the Cr4+∶YAG solid-state laser as the absorption efficiency,quantum efficiency,storage efficiency and extraction efficiency has been discussed in this paper. The absorption cross section,the stimulated emission cross section,the high energy level lifetime and the dopant ion concentration of the Cr4+∶YAG crystals would obviously affect the intrinsic efficiency of this laser. The efficiency of the Cr4+∶YAG solid-state laser will be largely improved when the optical quality and the dopant concentration in the Cr4+∶YAG crystals are increased and when the operated wavelength of pump and the design of the Cr4+∶YAG laser cavity is optimized. |
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| Keywords: | Laser technique Solid-state laser Cr4+∶YAG crystals Intrinsic efficiency |
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