| LD纵向泵浦的946nm Nd:YAG准三能级激光系统的研究 |
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| 引用本文： | 禹国俊,姚建铨,郭丽,张百钢,张浩,王鹏.LD纵向泵浦的946nm Nd:YAG准三能级激光系统的研究[J].量子电子学报,2003,20(6):675-679. |
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| 作者姓名： | 禹国俊 姚建铨 郭丽 张百钢 张浩 王鹏 |
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| 作者单位： | 1. 天津大学精仪学院激光与光电子研究所,教育部光电信息技术科学重点实验室,天津,300072;南开大学,天津大学联合研究院,天津,300072
2. 天津大学精仪学院激光与光电子研究所,教育部光电信息技术科学重点实验室,天津,300072;南开大学,天津大学联合研究院,天津,300072;华中科技大学激光技术国家重点实验室,武汉,430074 |
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| 基金项目： | 国家自然科学基金资助项目(60278001)、博士点基金资助项目. |
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| 摘 要： | 对准三能级系统进行了研究,分析了激光上、下能级不同的能级寿命以及上能级自发辐射对下能级粒子数所造成的影响,修正了Fan等提出的纵向泵浦准三能级系统的理论模型.进行了数值模拟,得出了系统参数对LD纵向泵浦的946nm NdYAG激光器性能的影响规律.认为在一定掺杂浓度和输出损耗情况下,存在最佳晶体长度使阈值最低,及最佳模式匹配使斜效率最高.理论得到了实验验证.
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| 关 键 词： | 准三能级系统 946nm NdYAG激光 模式匹配 |
| 文章编号： | 1007-5461(2003)06-0675-05 |
| 收稿时间： | 2003/8/11 |
| 修稿时间： | 2003年8月11日 |
Study of Longitudinally LD-pumped 946 nm Nd:YAG Quasi-three-level Laser System |
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| Yu Guojun,Yao Jianquaxi,Guo Li,Zhang Baigang,Zhang Hao,Wang Peng
College of Precision Instrument and Optoelectronics Engineering,Institxite of laser and Optoelectronics,Key Lab.
of Laser and Optoelectric Information Science and Technology,MOE Tianjin China ,
Cooperated Institute of Nankai University and Tianjin University,Tianjin University Tianjin China , State Key Lab Of Laser Technology,Huazhong University of Science and Technology Wuhan China.Study of Longitudinally LD-pumped 946 nm Nd:YAG Quasi-three-level Laser System[J].Chinese Journal of Quantum Electronics,2003,20(6):675-679. |
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| Authors: | Yu Guojun Yao Jianquaxi Guo Li Zhang Baigang Zhang Hao Wang Peng
College of Precision Instrument and Optoelectronics Engineering Institxite of laser and Optoelectronics Key Lab
of Laser and Optoelectric Information Science and Technology MOE Tianjin China Cooperated Institute of Nankai University and Tianjin University Tianjin University Tianjin China State Key Lab Of Laser Technology Huazhong University of Science and Technology Wuhan China |
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| Affiliation: | Yu Guojun,Yao Jianquaxi,Guo Li,Zhang Baigang,Zhang Hao,Wang Peng
College of Precision Instrument and Optoelectronics Engineering,Institxite of laser and Optoelectronics,Key Lab.
of Laser and Optoelectric Information Science and Technology,MOE Tianjin 300072 China ,
Cooperated Institute of Nankai University and Tianjin University,Tianjin University Tianjin 300072 China , State Key Lab Of Laser Technology,Huazhong University of Science and Technology Wuhan 30074 China ) |
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| Abstract: | The theoretical model of quasi-three-level system was modified through considering different lifetime of laser upper and lower level and spontaneous radiation from upper level to lower level. Numerical simulation was carried out and the law of 946 nm Nd:YAG laser performance varying with system parameters was obtained. At a certain doping concentration and output loss, there is an optimum crystal length and an optimum ratio of pump and laser beam radii. The experimental results accord with theory analysis. |
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| Keywords: | quasi-three-level system 946 nm Nd:YAG laser mode matching |
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