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Efficient continuous-wave eye-safe region signal output from intra-cavity singly resonant optical parametric oscillator

Authors:	Li Bin Ding Xin Sheng Quan Yin Su-Ji Shi Chun-Peng Li Xue Yu Xuan-Yi Wen Wu-Qi and Yao Jian-Quan

Institution:	College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Opto-Electronics, Tianjin University, Tianjin 300072, China; Key Laboratory of Opto-electronics Information Technology of Ministry Education, Tianjin University, Tian;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Opto-Electronics, Tianjin University, Tianjin 300072, China; Key Laboratory of Opto-electronics Information Technology of Ministry Education, Tianjin University, Tian;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Opto-Electronics, Tianjin University, Tianjin 300072, China; Key Laboratory of Opto-electronics Information Technology of Ministry Education, Tianjin University, Tian;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Opto-Electronics, Tianjin University, Tianjin 300072, China; Key Laboratory of Opto-electronics Information Technology of Ministry Education, Tianjin University, Tian;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Opto-Electronics, Tianjin University, Tianjin 300072, China; Key Laboratory of Opto-electronics Information Technology of Ministry Education, Tianjin University, Tian;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Opto-Electronics, Tianjin University, Tianjin 300072, China; Key Laboratory of Opto-electronics Information Technology of Ministry Education, Tianjin University, Tian;School of Physics, Nankai University, Tianjin 300071, China;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Opto-Electronics, Tianjin University, Tianjin 300072, China; Key Laboratory of Opto-electronics Information Technology of Ministry Education, Tianjin University, Tian;College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Opto-Electronics, Tianjin University, Tianjin 300072, China; Key Laboratory of Opto-electronics Information Technology of Ministry Education, Tianjin University, Tian

Abstract:	We report an efficient continuous-wave (CW) tunable intra-cavity singly resonant optical parametric oscillator based on the multi-period periodically poled lithium niobate and using a laser diode (LD) end-pumped CW 1064 nm Nd:YVO₄ laser as the pump source. A highly efficiency CW operation is realized through a careful cavity design for mode matching and thermal stability. The signal tuning range is 1401-1500 nm obtained by varying the domain period. The maximum output power of 2.2 W at 1500 nm is obtained with a 17.1 W 808 nm LD power and the corresponding conversion efficiency is 12.9%.

Keywords:	continuous-wave intracavity optical parametric oscillator periodically poled lithium niobate tunable eye-safe laser

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