Widely continuous-tunable 2.789-4.957 μm twin-MgO:PPLN cascaded optical parametric oscillator
An all-solid-state mid-infrared optical parametric oscillator with wide tunability by using two identical multi-grating periodically poled 5-mol.-% MgO-doped lithium niobate cascaded is reported.The pump laser is an acousto-optically Q-switched Nd:YAG laser with 150-ns pulse width at repetition rate of 10 kHz.Wide tunability from 2.789 to 4.957 μm at the idler wavelength is achieved by varying the temperature from 40 to 200 ℃ and translating the grating periods from 26 to 31 μm with a step of 0.5 μm.When the incident pump average power is 8.15 W, the maximum idler output average power is 2.23 W at 3.344 μm and the optic-optic conversion efiiciency is about 27.4%.
作 者： Linzhong Xia Hong Su Shuangchen Ruan 作者单位： Linzhong Xia(College of Optoelectronic Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Shenzhen Key Laboratory of Laser Engineering,Shenzhen University,Shenzhen 518060,China)Hong Su,Shuangchen Ruan(Shenzhen Key Laboratory of Laser Engineering,Shenzhen University,Shenzhen 518060,China)
刊 名： 中国光学快报(英文版) ISTIC EI 英文刊名： CHINESE OPTICS OF LETTERS 年，卷(期)： 2009 7(11) 分类号： 关键词：