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首页> 外文期刊>Applied optics >Yellow-green 52.3 W laser at 556 nm based on frequency doubling of a diode side-pumped Q-switched Nd:YAG laser
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Yellow-green 52.3 W laser at 556 nm based on frequency doubling of a diode side-pumped Q-switched Nd:YAG laser

机译：基于二极管侧泵Q开关Nd：YAG激光器的倍频，在556 nm处发射的黄绿色52.3 W激光器

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摘要

We demonstrate a high-power 556 nm yellow-green laser generated by intracavity frequency doubling of a diode side-pumped Nd:YAG laser at 1112 nm. A symmetrical L-shaped flat-flat cavity was employed to implement efficient operation of the low-gain 1112 nm transition and to achieve good power scalability. The coatings of the cavity mirrors were carefully designed to optimize the performance of the laser, and a 92 W continuous wave laser output at 1112 nm was achieved when the pumping power of the laser diodes reached 960 W. By intracavity frequency doubling of the fundamental laser in a lithium triborate crystal, the maximum power of the frequency-doubled output at 556 nm was found to be as high as 52.3 W with a pulse repetition frequency of 10 kHz. This corresponds to an optical-to-optical conversion efficiency of about 5.4percent.
机译：我们展示了一个高功率556 nm黄绿色激光器，该激光器是通过在1112 nm处二极管侧泵浦Nd：YAG激光器的腔内倍频产生的。采用对称的L形平坦腔来实现低增益1112 nm跃迁的有效工作并实现良好的功率可扩展性。仔细设计了腔镜的涂层以优化激光器的性能，当激光二极管的泵浦功率达到960 W时，在1112 nm处获得了92 W连续波激光输出。通过基本激光器的腔内频率加倍在三硼酸锂晶体中，发现在556 nm处倍频输出的最大功率高达52.3 W，脉冲重复频率为10 kHz。这对应于大约5.4％的光学转换效率。

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