A high-energy and simple structure switchable dual-wavelength lamp-pumped Nd:YAG MOPA laser system is introduced. A simple and robust method that improves the conversion efficiency of the second harmonic of a Nd:YAG MOPA laser system is reported, as a demonstration of the concept, through engineering a beam profile with uniform intensity distribution via glass soft-edge diaphragm. With the proposed scheme, an MOPA laser system at 487 ps pulse width and 10 Hz repetition rate with the pulse energy of 702 mJ at 1064 nm and 433 mJ at 532 nm among the switchable dual-wavelength amplifier is demonstrated. Our work provides a promising approach for achieving high energy and uniform intensity distribution Nd:YAG MOPA laser system that can be readily used in the field of medical aesthetics.

中文翻译：

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10Hz、702mJ、亚纳秒 Nd:YAG MOPA 激光系统

介绍了一种高能量、结构简单的可切换双波长灯泵浦Nd:YAG MOPA激光系统。报告了一种简单而可靠的方法，可提高 Nd:YAG MOPA 激光系统二次谐波的转换效率，作为该概念的演示，通过玻璃软边光阑设计具有均匀强度分布的光束轮廓。利用所提出的方案，演示了在可切换双波长放大器中，487 ps 脉冲宽度和 10 Hz 重复频率的 MOPA 激光系统，其脉冲能量为 1064 nm 处 702 mJ 和 532 nm 处 433 mJ。我们的工作为实现高能量和均匀强度分布的 Nd:YAG MOPA 激光系统提供了一种有前途的方法，该系统可以很容易地用于医学美容领域。