57聽mJ with 10聽ns passively Q-switched diode pumped Nd:YAG laser using Cr4+:YAG crystal
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- 作者：A. Maleki ; M. H. Moghtader dindarlu ; H. Saghafifar…
- 关键词：Diode pumped Nd ; YAG laser ; Initial transmission ; Passively Q ; switched ; Cr4+ ; YAG crystal
- 刊名：Optical and Quantum Electronics
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：48
- 期：1
- 全文大小：1,718 KB
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M. H. Moghtader dindarlu (1)
H. Saghafifar (1)
M. Kavosh Tehrani (1)
M. Soltanolkotabi (2)
M. Dehghan Baghi (3)
M. R. Maleki Ardestani (1)
1. Optic and Laser Science and Technology Research Center, Malek Ashtar University of Technology, Isfahan, Iran
2. Department of Physics, Quantum Optics Group, University of Isfahan, Isfahan, Iran
3. Isfahan Electro Optic Industries (IOI), Isfahan, Iran - 刊物主题：Optics, Optoelectronics, Plasmonics and Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks;
- 出版者：Springer US
- ISSN：1572-817X
文摘
In this paper, a side diode pumped passively Q-switched Nd:YAG laser is presented using a Cr4+:YAG as saturable absorber. The performance of the Nd:YAG laser in the free-running and Q-switched modes is theoretically and experimentally studied with different output coupler reflectivities and different initial transmissions of Cr4+:YAG crystals. The optimum reflectivity of the output coupler is found to be 25 % in the Q-switched mode according to the theoretical calculations and experimental results. The initial transmission of Cr4+:YAG is set to 20 % in order to achieve maximum output energy in a single laser pulse. The experimental results are in good agreement with calculated values. In the Q-switched mode, single pulse output energy is obtained around 57 mJ with 10 ns pulse duration over 1鈥?0 Hz pulse repetition rates. The optical to optical conversion efficiency reaches 14.25 %. Keywords Diode pumped Nd:YAG laser Initial transmission Passively Q-switched Cr4+:YAG crystal