| 周期极化掺镁铌酸锂晶体光参变产生研究 |
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| 引用本文： | 薛亮平,姚江宏,颜博霞,贾国治,许京军,张光寅.周期极化掺镁铌酸锂晶体光参变产生研究[J].激光技术,2007,31(2):120-122. |
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| 作者姓名： | 薛亮平 姚江宏 颜博霞 贾国治 许京军 张光寅 |
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| 作者单位： | 1.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
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天津市自然科学基金
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教育部长江学者和创新团队发展计划 |
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| 摘 要： | 为了获得1.5μm波段可调谐红外光输出,采用短脉冲电场极化法,在1mm厚的掺镁(摩尔分数为0.05)铌酸锂晶体上成功制备了周期为29μm的极化光栅。利用声光调QNd:YVO4固体激光器直接抽运PPMgLN晶体,开展了OPG光学转换研究工作。在输入3W的抽运光时,得到信号光输出功率为44mW,转换效率1.5%。并通过调谐晶体温度(45℃~160℃),获得了调谐范围1.4538μm~1.4750μm的信号光输出。实现了可调谐红外光的输出,验证了晶体周期结构的均匀性。
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| 关 键 词： | 激光技术 光参变产生 周期极化掺镁铌酸锂晶体 准相位匹配 |
| 文章编号： | 1001-3806(2007)02-0120-03 |
| 收稿时间： | 2006/1/18 |
| 修稿时间： | 2006-01-18 |
Study on optical parametric generation based on periodically poled MgO:LiNbO3 crystal |
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| XUE Liang-ping,YAO Jiang-hong,YAN Bo-xia,JIA Guo-zhi,XU Jing-jun,ZHANG Guang-yin.Study on optical parametric generation based on periodically poled MgO:LiNbO3 crystal[J].Laser Technology,2007,31(2):120-122. |
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| Authors: | XUE Liang-ping YAO Jiang-hong YAN Bo-xia JIA Guo-zhi XU Jing-jun ZHANG Guang-yin |
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| Affiliation: | TEDA Applied Physics School, Nankai University,Tianjin 300457, China |
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| Abstract: | By using short-pulse field,the periodically poled grating(Λ =29μm)was successfully fabricated in 1.Omm thick MgO∶LiNbO3(mole fraction of doped MgO is 0.05). A high-repetition-rate optical parametric generation(OPG)based on PPMgLN pumped by a 1.064μm acousto-optically Q-switched Nd∶YVO4 laser. Under the condition of 3W of input pump power,44mW of output signal power was obtained,and the conversion efficiency was 1.5%. Furthermore a tunable infrared(IR)output from 1.4538μm～1.4750μm was obtained by tuning the temperature of PPMgLN(45℃～160 ℃). |
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| Keywords: | laser technique optical parametric generation(OPG) periodically poled MgO∶LiNbO3 crystal(PPMgLN) quasi-phase match |
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