| Low-threshold, high-efficiency, high-repetition-rate optical parametric generator based on periodically poled LiNbO3 |
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| 作者姓名： | 张百钢 姚建铨 丁欣 张浩 王鹏 徐德刚 禹国俊 张帆 |
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| 作者单位： | College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China; Cooperated Institute of Nankai University and Tianjin University, Tianjin 300072, China; Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, China;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China; Cooperated Institute of Nankai University and Tianjin University, Tianjin 300072, China; Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, China;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China; Cooperated Institute of Nankai University and Tianjin University, Tianjin 300072, China; Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, China;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China; Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, China;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China; Cooperated Institute of Nankai University and Tianjin University, Tianjin 300072, China; Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, China;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China; Cooperated Institute of Nankai University and Tianjin University, Tianjin 300072, China; Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, China;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China; Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, China;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China; Cooperated Institute of Nankai University and Tianjin University, Tianjin 300072, China; Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 60278001), the Science and Technology Cooperation Foundation of Nankai University and Tianjin University, the Ministry of Education; the Doctoral Program Foundation of Ministry of Education of China, and the Outstanding Doctorate Dissertation of Tianjin University (Grant No [2001]01). |
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| 摘 要： | We report a high-repetition-rate optical parametric generator (OPG) with a periodically poled lithium niobate (PPLN) crystal pumped by an acousto-optically Q-switched CW-diode-end-pumped Nd:YVO_4 laser. For the maximum 1064nm pump power of 970mW, the maximum conversion efficiency is 32.9% under the conditions of 250℃, 1064nm pulse repetition rate of 22.6kHz and pulse width of 12ns, and the PPLN OPG threshold in the collinear case is less than 23.7μJ. The output power increases with the increase of the crystal temperature. The 1485－1553nm signal wave and 3383－3754nm idler wave are obtained by changing the temperature and the angle of the PPLN crystal.
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| 关 键 词： | 光学参数振荡器 准相位匹配 光学参数电机 铌酸锂晶体 激光器应用 |
| 收稿时间： | 2003-08-28 |
Low-threshold, high-efficiency, high-repetition-rate optical parametric generator based on periodically poled LiNbO3 |
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| Zhang Bai-Gang,Yao Jian-Quan,Ding Xin,Zhang Hao,Wang Peng,Xu De-Gang,Yu Guo-Jun and Zhang Fan.Low-threshold, high-efficiency, high-repetition-rate optical parametric generator based on periodically poled LiNbO3[J].Chinese Physics B,2004,13(3):364-368. |
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| Authors: | Zhang Bai-Gang Yao Jian-Quan Ding Xin Zhang Hao Wang Peng Xu De-Gang Yu Guo-Jun and Zhang Fan |
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| Abstract: | We report a high-repetition-rate optical parametric generator (OPG) with a periodically poled lithium niobate (PPLN) crystal pumped by an acousto-optically Q-switched CW-diode-end-pumped Nd:YVO_4 laser. For the maximum 1064nm pump power of 970mW, the maximum conversion efficiency is 32.9% under the conditions of 250℃, 1064nm pulse repetition rate of 22.6kHz and pulse width of 12ns, and the PPLN OPG threshold in the collinear case is less than 23.7μJ. The output power increases with the increase of the crystal temperature. The 1485－1553nm signal wave and 3383－3754nm idler wave are obtained by changing the temperature and the angle of the PPLN crystal. |
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| Keywords: | quasi-phase-matching periodically poled lithium niobate optical parametric generator |
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