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	激光二极管抽运声光调Q高重复频率532nm激光器
	冯立春 ; 霍玉晶 ; 何淑芳 ; 杨成伟 ; FENG Li-chun ; HUO Yu-jing ; HE Shu-fang ; YANG Cheng-wei
	2010-06-09 ; 2010-06-09
关键词	激光技术 固体激光器 激光二极管抽运 储能时间 声光调Q 内腔倍频 高重复频率 laser technique solid-state laser laser diode pump ed storage time acousto-optics Q-switched intracavity second harmonic g eneration high repetition-rate TN248.1
其他题名	LD-pumped Acousto-optically Q-switched 532 nm Laser with High Repetition Rate
中文摘要	实现了重复频率高达105 kHz的紧凑的全固态声光(A-O)调Q 532 nm腔内倍频激光器。激光器使用Nd∶YVO4作为激光晶体,Ⅱ类匹配的KTP为倍频晶体,声光器件材料为熔融石英,由自制的声光驱动器驱动,其最大射频输出功率为7.5 W,重复频率1 Hz~105 kHz可调。使用1 W的激光二极管(LD)抽运,50 kHz重复频率下,得到平均功率达224 mW的532 nm脉冲激光稳定平均输出,总光光转换效率高达22.4%。低重复频率下,可以实现脉宽为17.2 ns,峰值功率为470 W,单脉冲能量为8.1μJ的稳定运转。给出了平均功率与重复频率关系的一般公式,并提出即使是在四能级系统中,有效储能时间也并不等于上能级寿命,理论计算结果与实验结果吻合得很好。; A compact, all solid-state and high repeti ti on rate as up to 105 kHz acousto-optic (A-O) Q-switched intracavity frequ ency-doubled 532 nm laser is demonstrated. A Nd∶YVO 4 crystal is used a s active media and a type-Ⅱ KTP (KTiPO 4) as frequency doubler, The Q switcher is made by fused silica and driven by a driver whose maximal rf outpu t power is 7.5 W and repetition rate is variable from 1 Hz to 105 kHz, which is made by our own. 224 mW of 532 nm average power at a repetition rate of 50 kHz w as generated with a 1 W laser diode (LD) as pump source, and a high optical-to-o ptical conversion efficiency of 22.4% was obtained. Under low repetition rate, s teady operation is achieved with pulse width of 17.2 ns, peak power of 470 W and single pulse energy of 8.1 μJ. A general formula of average-power as a functi on of pulse repetition rate is presented which has good agreement with the exper iment results. Analysis and experimental verification showed that, even in four -level system, the effective storage time is not equal to the upper state lifet ime.; 国家863计划(2001AA311060)资助项目。
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/54775]
专题	清华大学
推荐引用方式 GB/T 7714	冯立春,霍玉晶,何淑芳,等. 激光二极管抽运声光调Q高重复频率532nm激光器[J],2010, 2010.
APA	冯立春.,霍玉晶.,何淑芳.,杨成伟.,FENG Li-chun.,...&YANG Cheng-wei.(2010).激光二极管抽运声光调Q高重复频率532nm激光器..
MLA	冯立春,et al."激光二极管抽运声光调Q高重复频率532nm激光器".(2010).

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