光学精密工程2019，Vol.27Issue(1)：45-50,6.DOI:10.3788/OPE.20192701.0045
三镜直腔结构MgO∶PPLN高效连续光参量振荡器
Efficient continuous-wave MgO∶PPLN optical parametric oscillator with three-mirror linear cavity
摘要
Abstract
In order to optimize the output characteristics of continuous-wave singly resonant MgO∶PPLN optical parametric oscillations (OPO), a compact three-mirror linear cavity structure was designed for efficient signal light and idler light outputs.A diode laser end-pumped Nd∶YVO4 crystal laser at 1 064 nm was used as the fundamental laser source to derive the OPO in the cavity.Three laser cavities with cavity mirrors chosen from plane mirror or plano-concave mirror were designed for comparison.The simulation results show that the fundamental laser beam could be compressed, and the power density could be improved on the MgO∶PPLN crystal if all three cavity mirrors used the plano-concave mirror (named concave-concave-concave cavity in this paper).The frequency conversion efficiency would be improved for better mode matching between the fundamental cavity and the OPOcavity with the concave-concave-concave cavity.A total output power of 3.92 Wand conversion efficiency of 31.6％ were obtained at the incident pump power of 12.4 Wand grating period of 30.5μm.A 2.6 Wlight signal with the center wavelength at 1 549 nm and 1.32 Widler light with center wavelength at 3 394 nm were achieved.关键词
光参量振荡/中红外激光/MgO∶PPLN/准相位匹配/端面抽运Key words
optical parametric oscillator/mid-infrared laser/MgO∶PPLN/quasi-phase-matching/end-pump分类
数理科学引用本文复制引用
尉鹏飞,张永昶,张静,段延敏,朱海永..三镜直腔结构MgO∶PPLN高效连续光参量振荡器[J].光学精密工程,2019,27(1):45-50,6.基金项目
国家自然科学基金资助项目 (No.61505147, No.11474223) （No.61505147, No.11474223）
浙江省公益技术应用研究计划资助项目 (No.2017C34008, No.2015C34017) （No.2017C34008, No.2015C34017）
