中国物理B ›› 2004, Vol. 13 ›› Issue (3): 364-368.doi: 10.1088/1009-1963/13/3/018

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Low-threshold, high-efficiency, high-repetition-rate optical parametric generator based on periodically poled LiNbO3

张百钢1, 姚建铨1, 丁欣1, 王鹏1, 徐德刚1, 张帆1, 张浩2, 禹国俊2   

  1. (1)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; (2)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 Universi
  • 收稿日期:2003-08-28 修回日期:2003-10-15 出版日期:2004-03-06 发布日期:2005-07-06
  • 基金资助:
    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 Ministr

Low-threshold, high-efficiency, high-repetition-rate optical parametric generator based on periodically poled LiNbO3

Zhang Bai-Gang (张百钢)abc, Yao Jian-Quan (姚建铨)abc, Ding Xin (丁欣)abc, Zhang Hao (张浩)ac,  Wang Peng (王鹏)abc, Xu De-Gang (徐德刚)abc, Yu Guo-Jun (禹国俊)ac, Zhang Fan (张帆)abc    

  1. a College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China; b Cooperated Institute of Nankai University and Tianjin University, Tianjin 300072, Chinac Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
  • Received:2003-08-28 Revised:2003-10-15 Online:2004-03-06 Published:2005-07-06
  • Supported by:
    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 Ministr

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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.

关键词: quasi-phase-matching, periodically poled lithium niobate, optical parametric generator

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.

Key words: quasi-phase-matching, periodically poled lithium niobate, optical parametric generator

中图分类号:  (Parametric down conversion and production of entangled photons)

  • 42.65.Lm
42.65.Yj (Optical parametric oscillators and amplifiers) 42.70.Mp (Nonlinear optical crystals) 42.55.Rz (Doped-insulator lasers and other solid state lasers) 42.60.By (Design of specific laser systems) 42.60.Gd (Q-switching) 42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation)