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Experiment Study on Active-passive Mode-locking Using Cr4+:YAG as Saturable Absorber

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Abstract

Cr4+:YAG crystal was used as a saturable absorber in an active-passive mode-locked Nd:YAG laser. The stable and complete mode-locked pulse train was achieved at 1064 nm. The duration of ~0.8 ns to 2.4 ns for a single pulse was obtained by using Cr4+:YAG crystals with the different initial transmissions, and there was a shortest pulse width. The mode-locking dynamic process of Cr4+:YAG crystal was discussed to explain the experimental result, and the effect of excited-state absorption was considered.

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中图分类号:TN24

所属栏目:Laser Devices

基金项目:Supported by the National Natural Science Foundation of China (69778008)

收稿日期:2000-12-22

修改稿日期:2001-04-20

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作者单位    点击查看

LENG Yuxin:Shanghai Institute of Optics and Fine Mechanics,The Chinese Academy of Sciences, Shanghai 201800, China
LU Haihe:Shanghai Institute of Optics and Fine Mechanics,The Chinese Academy of Sciences, Shanghai 201800, China
LIN Lihuang:Shanghai Institute of Optics and Fine Mechanics,The Chinese Academy of Sciences, Shanghai 201800, China
XU Zhizhan:Shanghai Institute of Optics and Fine Mechanics,The Chinese Academy of Sciences, Shanghai 201800, China

备注:LENG Yuxin, born in Shanghai, China, in 1975. Received his B. S. degree in physics from Wuhan University in 1997. He is now working for the Ph. D degree in ultrafast laser physics.

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【2】Wan Xiaoke, Lin Lihuang, Ouyang Bin et al.. Cr4+:YAG as passive Q-switch for a Nd:YAG oscillator with pulse width of 5 ns. CLEO’97, 1997 Paper CFJ3

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【7】Lin Lihuang, Ouyang Bin, Leng Yuxin et al.. Mode-locked Nd:YAG laser using Cr4+:YAG crystal at 1.064 μm. CLEO’99, 1999 Paper CTuK36

【8】Yung-Fu Chen, S. W. Tsai, S. C. Wang. High-power diode-pumped Q-switched and mode-locked Nd:YVO4 laser with a Cr4+:YAG saturable absorber. Opt. Lett., 2000, 25:1442~1444

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引用该论文

LENG Yuxin,LU Haihe,LIN Lihuang,XU Zhizhan. Experiment Study on Active-passive Mode-locking Using Cr4+:YAG as Saturable Absorber[J]. 中国激光(英文版), 2002, 11(1): 1-4

LENG Yuxin,LU Haihe,LIN Lihuang,XU Zhizhan. Experiment Study on Active-passive Mode-locking Using Cr4+:YAG as Saturable Absorber[J]. Chinese Journal of Lasers B, 2002, 11(1): 1-4

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