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
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
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.
Received: 28 August 2003
Revised: 15 October 2003
Accepted manuscript online:
PACS:
42.65.Lm
(Parametric down conversion and production of entangled photons)
(Beam characteristics: profile, intensity, and power; spatial pattern formation)
Fund: 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
Cite this article:
Zhang Bai-Gang (张百钢), Yao Jian-Quan (姚建铨), Ding Xin (丁欣), Zhang Hao (张浩), Wang Peng (王鹏), Xu De-Gang (徐德刚), Yu Guo-Jun (禹国俊), Zhang Fan (张帆) Low-threshold, high-efficiency, high-repetition-rate optical parametric generator based on periodically poled LiNbO3 2004 Chinese Physics 13 364
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.