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High power output quasi-continuous-wave nanosecond optical parametric generator based on periodically poled lithium niobate
Authors:Yang Lu  Bai-gang Zhang  De-gang Xu  Xin Ding  Peng Wang  Tie-li Zhang  Feng Ji and Jian-quan Yao
Affiliation:(1) College of Precision Instrument and Optoelectronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, 300072 Tianjin, China;(2) Cooperated Institute of Nankai University and Tianjin University, 300072 Tianjin, China;(3) Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, 300072 Tianjin, China
Abstract:We report on a high power output quasi-continuous-wave nanosecond optical parametric generator (OPG) of congruent periodically poled lithium niobate (PPLN) pumped by a 1064 nm acousto-opticallyQ-switched Nd: YVO4 laser (duration: 70 ns, repetition rate: 45 kHz, spatial beam qualityM 2< 1.3). The OPG consists of a 38.7 mm long PPLN crystal with a domain period of 28.93 μ. With 5.43 W of average pump power the maximum average output power is 991 mW at 1517.1 nm signal wave of the PPLN OPG. Supported by the National Natural Science Foundation of China (Grant No 60278001 and No 10474071), the Science & Technology Cooperation Foundation of Nankai University and Tianjin University, the Ministry of Education, the Ph. D. Programs Foundation of Ministry of Education of China (Grant No 2020056001), Tianjin municipal technological development planning and the Outstanding Doctorate Dissertation of Tianjin University 2001]01.
Keywords:CLC number" target="_blank">CLC number  O437  5
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