| 周期极化掺镁铌酸锂晶体的光学参量振荡 |
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| 引用本文： | 姚江宏,薛亮平,颜博霞,贾国治,许京军,张光寅.周期极化掺镁铌酸锂晶体的光学参量振荡[J].中国激光,2007,34(2):09-213. |
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| 作者姓名： | 姚江宏 薛亮平 颜博霞 贾国治 许京军 张光寅 |
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| 作者单位： | 南开大学弱光非线性光子学材料先进技术及制备教育部重点实验室,天津市信息光子材料与技术重点实验室,南开大学泰达应用物理学院,天津,300457 |
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| 基金项目： | 国家自然科学基金;天津市自然科学基金;教育部长江学者和创新团队发展计划 |
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| 摘 要： | 采用短脉冲极化电场法,在1 mm厚的掺摩尔分数0.05镁的铌酸锂晶体上成功制备了周期为30μm的极化光栅。以输出波长为1.064μm的声光调QNd∶YAG固体激光器作为基频抽运源对其进行了光学参量振荡实验,光参量振荡阈值功率为45 mW(重复频率为1 kHz),在输入功率为490 mW,控温炉温度为160℃时,获得了94 mW的波长为1544 nm的信号光输出,转换效率达到19.2%。并且通过调谐晶体温度(20~180℃),获得了调谐范围为1503~1550 nm的信号光稳定输出。实现了可调谐红外光的稳定输出,验证了晶体周期结构的均匀性。
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| 关 键 词： | 非线性光学 光学参量振荡器 周期极化掺镁铌酸锂晶体 温度调谐 准相位匹配 |
| 文章编号： | 0258-7025（2007）02-0209-05 |
| 收稿时间： | 2006/7/19 |
| 修稿时间： | 2006-07-19 |
Optical Parametric Oscillator Based on Periodically Poled MgO: LiNbO3 Crystal |
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| YAO Jiang-hong,XUE Liang-ping,YAN Bo-xia,JIA Guo-zhi,XU Jing-jun,ZHANG Guang-yin.Optical Parametric Oscillator Based on Periodically Poled MgO: LiNbO3 Crystal[J].Chinese Journal of Lasers,2007,34(2):09-213. |
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| Authors: | YAO Jiang-hong XUE Liang-ping YAN Bo-xia JIA Guo-zhi XU Jing-jun ZHANG Guang-yin |
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| Affiliation: | Key Laboratory of Advanced Technique and Fabrication for Weak-Light Nonlinear Photonics Materials, Ministry of Education, Tianjin Key Laboratory of Photonics Materials and Technology for Information Science, TEDA Applied Physics School, Nankai University, Tianjin 300457, China |
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| Abstract: | By using short-pulse field, the periodically poled grating (Λ=30 μm) was successfully fabricated in 1 mm thick MgO:LiNbO3 (doped 5 mol% MgO). A high-repetition-rate optical parametric oscillator (OPO) experiment based on periodically poled MgO:LiNbO3 crystal (PPMgLN) pumped by a 1.064 μm acousto-optically Q-switched Nd:YAG laser was performed. The threshold is 45 mW with 1 kHz pulse repetition rate. Under the condition of 490 mW of input pump power and at 160 ℃, 94 mW of output signal power was obtained, and the conversion efficiency is 19.2%. Furthermore a tunable infrared ( IR) stable output from 1503 nm to 1550 nm was obtained by tuning the temperature of PPMgLN from 20 ℃ to 180 ℃. |
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| Keywords: | nonlinear optics optical parametric oscillator periodically poled MgO:LiNbO3 crystal temperature tunable quasi-phase matched |
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