LD泵浦Nd:YVO<sub>4</sub>/V:YAG被动调Q 1.34 μm激光器

薛庆华; 郑权; 卜轶坤; 钱龙生

光子学报, 2005, 34 (7): 971, 网络出版: 2006-06-12

LD泵浦Nd:YVO₄/V:YAG被动调Q 1.34 μm激光器

LD-pumped Nd: YVO₄/V: YAG Passively Q-switched 1.34 μm Laser

论文大纲

薛庆华 ^1,2郑权 ¹卜轶坤 ^1,2钱龙生 ¹

作者单位

¹ 中国科学院长春光学精密机械与物理所,长春,130022

² 中国科学院研究生院,北京,100039

饱和吸收体被动调Q Saturable absorber Passively Q-switched V∶YAG Nd∶YVO_4 V:YAG 1.34 μm Nd:YVO₄ 1.34μm

摘要

利用新型实用的晶体材料V:YAG作为被动调Q元件,实现了激光二极管泵浦Nd:YVO₄的1.34μm激光谱线调Q运转.研究了饱和吸收体小信号透过率对激光稳定性的影响,得出使用小信号透过率T0小的V:YAG可使激光脉冲能量和重复频率稳定的结论.在1.6 W的泵浦条件下,T0为96%、89%和85%时,4 h脉冲能量和重复频率稳定性分别为15%、10%和5%.使用T0为85%的V:YAG,获得了平均功率输出功率96 mW,脉宽8.8 ns,重复频率25 kHz,峰值功率436 W,脉冲能量3.84μJ的实验结果.

Abstract

A LD-pumped Nd∶YVO_4 laser passively Q-switched at 1.34 μm by using V∶YAG which is a new type of crystal saturable absorber.The relationship between the stability of pulse laser and the small signal transmission of V∶YAG was studied.The results show the laser is stable when the V∶YAG with smaller signal transmission is used.When the pump power is 1.6 W,the stability of pulse energy and repetition rate for 4 hours is 15%,10,5% for V∶YAG with small signal transmission of 96%,89%,85%,respectively.The results of average power of 96mW,minimum pulse width (FWHM) of 8.8 ns,pulse repetition rate of 25 kHz,peak power of 436 W and pulse energy of 3.84 μJ were obtained for small signal transmission of 85%.

参考文献

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薛庆华, 郑权, 卜轶坤, 钱龙生. LD泵浦Nd:YVO₄/V:YAG被动调Q 1.34 μm激光器[J]. 光子学报, 2005, 34(7): 971. 薛庆华, 郑权, 卜轶坤, 钱龙生. LD-pumped Nd: YVO₄/V: YAG Passively Q-switched 1.34 μm Laser[J]. ACTA PHOTONICA SINICA, 2005, 34(7): 971.

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