High efficiency optical parametric oscillator 2.7 μm laser on PPMgLN pumped by 1064 nm laser

被引：1

作者：

Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China ^{[1
]}

机构：

[1] Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang

来源：

Zhongguo Jiguang | 2009年 / 7卷 / 1815-1818期

关键词：

2.7-μm laser; Lasers; Optical parametric oscillator; PPMgLN crystal; Quasi-phase-matching;

D O I：

10.3788/CJL20093607.1815

中图分类号：

学科分类号：

摘要：

Experimental results of high-efficiency 2.7-μm laser is demonstrated on quasi-phase-matched single-resonated optical parametric oscillator (OPO) in PPMgLN (5% MgO-doping) pumped by 1064-nm laser. Theoretical analyses of PPMgLN grating period tuning are presented. When grating period is 31.3 μm, a PPMgLN OPO could get output at wavelength of 2.7 μm. The pump beam polarization matches the e→e+e interaction in PPMgLN, thus maximal nonlinear coefficient d33 (27.4 pm/V) is effective and walk-off of beams can be avoided. When pump power is 26 W with repetition rate of 7 kHz, an average output power of 4.7 W at wavelength of 2.72 μm is obtained with slope efficiency of more than 21%, and 9 W at the corresponding idler wavelength of 1.75 μm. The M2 factors of 2.7-μm laser are 2.05 and 1.84 in parallel and perpendicular directions, respectively.

引用

页码：1815 / 1818

页数：3

共 8 条

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