| Diode-pumped passively Q-switched and mode-locked Nd:YLF laser with Cr~(4+):YAG saturable absorber |
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| 作者姓名： | 潘淑娣 韩克祯 王红梅 范秀伟 何京良 |
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| 作者单位： | College of Physics and Electronics Shandong Normal University，College of Physics and Electronics Shandong Normal University，College of Physics and Electronics Shandong Normal University，College of Physics and Electronics Shandong Normal University，College of Physics and Electronics Shandong Normal University Ji'nan 250014，Ji'nan 250014，Ji'nan 250014，Ji'nan 250014，Ji'nan 250014 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China under Grant No. 60478009. |
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| 摘 要： | A diode-pumped passively Q-switched Nd:YLF laser was demonstrated by using saturable absorber of Cr4 :YAG. At the incident power of 7.74 W, pure passively Q-switched laser with per pulse energy of 210μJ and pulse width of 19.6 ns at repetition rate of 1.78 kHz was obtained by using Cr4 :YAG with initial transmission of 80%. At the incident power of 8.70 W, a Q-switched mode-locking with average output power of 650 mW was achieved, the overall slop efficiency was 16%, corresponding to the initial transmission of 85% of Cr4 :YAG.
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