| Widely and continuously tunable optical parametric generator based on MgO-doped periodically poled LiNbO_3 crystal |
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| 作者姓名： | 刁述妍 姚建铨 郑义 耿优福 谭晓玲 刘强 徐龙浩 |
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| 作者单位： | Henan Key Laboratory of Laser and Optoelectronics Information Technology of Zhengzhou University，Optoelectronics Information Science and Technology Laboratory Institute of Lasers and Optoelectronics College of Precision Instrument and Optoelectronics Engineering，Henan Key Laboratory of Laser and Optoelectronics Information Technology of Zhengzhou University，Henan Key Laboratory of Laser and Optoelectronics Information Technology of Zhengzhou University，Henan Key Laboratory of Laser and Optoelectronics Information Technology of Zhengzhou University，Henan Key Laboratory of Laser and Optoelectronics Information Technology of Zhengzhou University，Henan Key Laboratory of Laser and Optoelectronics Information Technology of Zhengzhou University，Zhengzhou 450052 Department of Physics，Linyi Normal University，Linyi 276005，Tianjin 300072，Zhengzhou 450052，Zhengzhou 450052，Zhengzhou 450052，Zhengzhou 450052，Zhengzhou 450052 |
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| 摘 要： | A widely and continuously tunable optical parametric generator (OPG) pumped by a 1064-nm acousto-optically Q-switched diode-end-pumped Nd:YAG laser based on MgO-doped periodically poled LiNbO3 crystal with a multigrating structure (29.2-30.4μm) is reported. A broad continuous signal spectrum of 1513-1700 nm is obtained by changing the crystal grating periods from 29.2 to 30.4μm and by tuning the crystal temperature from 30 to 180℃simultaneously. When the average pump power is 1.82 W with pulse duration of about 70 ns operating at a repetition rate of 10 kHz, the maximum signal output power of the periodically poled MgO-doped lithium niobate (PPMgLN) OPG is about 210 mW corresponding to the idler and total powers of 118.4 and 328.4 mW respectively.
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