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首页> 外文期刊>Optics Letters >Efficient RTP-based OPO intracavity pumped by an acousto-optic Q-switched Nd:YVO_4 laser
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Efficient RTP-based OPO intracavity pumped by an acousto-optic Q-switched Nd:YVO_4 laser

机译：声光调Q Nd：YVO_4激光器泵浦的基于RTP的高效OPO腔

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摘要

This Letter describes an intracavity pumped optical parametric oscillator (OPO) based on noncritical phase matching RbTiOPO_4 (RTP) crystal driven by a laser diode end-pumping acousto-optic Q-switched Nd:YVO_4 laser. Simultaneous efficient signal light at 1.6 μm and idler light at 3.1 μm outputs were obtained. At an incident pump power of 10.5 W and a Q-switching pulse repetition frequency of 60 kHz, 1.42 W at center wavelength of about 1619 nm and 0.38 W at 3108 nm were achieved, with the diode to OPO total output conversion efficiency up to 17.1%. The pulse width is about 6.5 ns for the signal light corresponding to the fundamental light at 1064 nm of about 10 ns. The spectral widths of the signal and idler light are narrower than 0.5 and 1.0 nm. The result shows that the RTP crystal is an efficient crystal to generate eye-safe and mid-infrared lights by making full use of noncritical phase matching.
机译：这封信描述了一种基于非临界相位匹配RbTiOPO_4（RTP）晶体的腔内泵浦光参量振荡器（OPO），该晶体由激光二极管端泵声光Q开关Nd：YVO_4激光器驱动。同时获得了1.6μm的有效信号光和3.1μm的输出的闲置光。在10.5 W的入射泵浦功率和60 kHz的Q开关脉冲重复频率下，中心波长约为1619 nm时为1.42 W，3108 nm时为0.38 W，二极管到OPO的总输出转换效率高达17.1。 ％。信号光的脉冲宽度约为6.5 ns，对应于1064 nm的基本光约为10 ns。信号和惰光的光谱宽度窄于0.5和1.0 nm。结果表明，RTP晶体是一种通过充分利用非关键相位匹配来产生人眼安全和中红外光的有效晶体。

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