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Compact KTA-based intracavity optical parametric oscillator driven by a passively Q-switched Nd:GdVO_(4) laser

机译:由无源调Q开关Nd:GdVO_(4)激光器驱动的基于KTA的紧凑型腔内光参量振荡器

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摘要

We present a compact and efficient KTA-based intracavity optical parametric oscillator (IOPO) driven by a diode-end-pumped Nd:GdVO_(4)/Cr:YAG passively Q-switched laser. At the incident diode pump power of 9.2 W, signal (1.53 (mu)m) and idler (3.47 (mu)m) average output powers of up to 744 and 356 mW, respectively, have been obtained. The total (signal + idler) optical-to-optical conversion efficiency is as high as 12percent. By using the knife-edge method, near-diffraction-limited signal and idler beams have been detected, and the M~(2) factors are well within 1.2. In addition, based on theABCD matrix theory, the impact of mode matching and the thermal lens effect on the OPO output have been analyzed.
机译:我们提出了一个紧凑而有效的基于KTA的腔内光参量振荡器(IOPO),它由二极管端泵浦Nd:GdVO_(4)/ Cr:YAG被动调Q激光器驱动。在入射二极管泵浦功率为9.2 W的情况下,分别获得了高达744 mW和356 mW的信号(1.53μm)和惰轮(3.47μm)的平均输出功率。总的(信号+惰轮)光-光转换效率高达12%。利用刀口法,检测到近衍射极限信号和空转光束,M〜(2)因子在1.2以内。另外,基于ABCD矩阵理论,分析了模式匹配和热透镜效应对OPO输出的影响。

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