A continuous-wave tunable orange-red source based on sum-frequency generation in an intra-cavity periodically poled LiNbO3 singly resonant optical parametric oscillator cavity

作者：Sheng, Quan^*; Ding, Xin; Yin, Sujia; Shi, Chunpeng; Li, Xue; Li, Bin; Yu, Xuanyi; Wen, Wuqi; Yao, Jianquan

来源：Journal of Optics, 2011, 13(9): 095201.

DOI：10.1088/2040-8978/13/9/095201

• tunable orange-red
• continuous-wave
• intra-cavity optical parametric oscillator
• intra-cavity sum-frequency generation

This work demonstrates a tunable continuous-wave (CW) all-solid-state orange-red source based on sum-frequency generation (SFG), using a tunable 1.4-1.5 mu m signal and a 1064 nm pump of an intra-cavity periodically poled LiNbO3 optical parametric oscillator in a BBO (beta-BaB2O4) crystal. Elaborate intra-cavity design ensured efficient CW singly resonant optical parametric oscillator (SRO) operation. Intra-cavity SFG made full use of the high circulating pump and signal power of the SRO under an external laser diode (LD) pump power that was ten times higher than the SRO threshold. The output wavelength tuning range was 605-623 nm. The maximum output power was 370 mW at 622.8 nm with 17.1 W LD pump power, corresponding to an overall conversion efficiency of 2.2%.

• 出版日期2011-9
• 单位南开大学; 天津大学