%A Xiong-Hua Zheng(郑雄桦), Bao-Fu Zhang(张宝夫), Zhong-Xing Jiao(焦中兴), Biao Wang(王彪) %T Tunable, continuous-wave single-resonant optical parametric oscillator with output coupling for resonant wave %0 Journal Article %D 2016 %J Chin. Phys. B %R 10.1088/1674-1056/25/1/014208 %P 14208-014208 %V 25 %N 1 %U {https://cpb.iphy.ac.cn/CN/abstract/article_118213.shtml} %8 2016-01-05 %X

We present a continuous-wave singly-resonant optical parametric oscillator with 1.5% output coupling of the resonant signal wave, based on an angle-polished MgO-doped periodically poled lithium niobate (MgO:PPLN), pumped by a commercial Nd:YVO4 laser at 1064 nm. The output-coupled optical parametric oscillator delivers a maximum total output power of 4.19 W with 42.8% extraction efficiency, across a tuning range of 1717 nm in the near-and mid-infrared region. This indicates improvements of 1.87 W in output power, 19.1% in extraction efficiency and 213 nm in tuning range extension in comparison with the optical parametric oscillator with no output coupling, while at the expense of increasing the oscillation threshold by a factor of ~ 2. Moreover, it is confirmed that the finite output coupling also contributes to the reduction of the thermal effects in crystal.