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We demonstrate a diode-pumped cw mode-locked Nd:YAG by an acousto-optic mode locker. A mode-locked pulse with duration of 345 ps and output power of 12 W is obtained. The resonator design shows three advantages: a larger mode volume, high stability against thermal lens fluctuations, and excellent beam quality with TE00 mode. Different from previous active mode locking designs, we employ a frequency stabilizer and a phase-lock loop circuit to ensure the mode locking stable operation. 相似文献
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2 μm激光处于水的吸收峰,对人眼安全而且处于大气窗口波段,在空间通讯、遥感探测、环境监测、激光制导、红外对抗、外科手术等领域具有重要的应用价值。随着各类掺铥和铥钬共掺激光介质的不断丰富及锁模技术不断发展,2 μm波段超短脉冲全固态振荡器成为最近几年激光技术的研究热点之一。文中系统分析了2 μm波段激光基质材料和锁模技术,概括了近年来国内外2 μm 超短脉冲全固态掺铥振荡器的最新进展,并对代表性实验进行了分析介绍,最后对2 μm波段超短脉冲全固态掺铥振荡器的发展前景做出总结与展望。 相似文献
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