520 mJ langasite electro-optically Q-switched Cr, Tm, Ho:YAG laser

Li Wang; Xuwu Cai; Jingwei YangXianyou WuHaihe JiangJiyang Wang

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520 mJ langasite electro-optically Q-switched Cr, Tm, Ho:YAG laser

机译：520 mJ 兰加石电光调Q Cr、Tm、Ho：YAG 激光器

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A flash lamp pumped 2.09 (mu)m Cr, Tm, Ho:YAG laser utilizing a self-grown La_(3)Ga_(5)SiO_(14) crystal as the electro-optic Q-switch generator is proposed and demonstrated for the first time. Operating at 3 Hz repetition rate, 520 mJ pulse energy with 35 ns pulse width is achieved by optimizing the Q-switch delay time and compensating for the thermal depolarization with a quarter-wave plate. The corresponding peak power is 14.86 MW, and the Q-switched-to-normal-mode energy extraction efficiency is 66.3percent. To our knowledge, this Q-switched giant pulse is the best result reported to date in 2.09 (mu)m laser resonator.

机译：首次提出并演示了一种利用自生长的La_（3）Ga_（5）SiO_（14）晶体作为电光Q开关发生器的2.09（μ）mCr，Tm，Ho：YAG激光器。在3 Hz重复频率下工作，通过优化Q开关延迟时间并用四分之一波板补偿热去极化，实现了520 mJ脉冲能量和35 ns脉冲宽度。对应的峰值功率为14.86 MW，Q切换到正常模式的能量提取效率为66.3%。据我们所知，这种调Q巨脉冲是迄今为止在2.09（μ）m激光谐振器中报道的最佳结果。

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来源
《Optics Letters》 |2012年第11期|1986-1988|共3页
作者
Li Wang; Xuwu Cai; Jingwei YangXianyou WuHaihe JiangJiyang Wang;
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作者单位

Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;

State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China;

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正文语种英语
中图分类计量学;
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520 mJ langasite electro-optically Q-switched Cr, Tm, Ho:YAG laser

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