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一种基于铌酸锂晶体的高效紧凑腔内倍频绿光激光器

A Compact and Highly Efficient Intracavity Frequency-DoubledGreen Laser Based on Periodically Poled Lithium Niobate

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摘要

基于周期极化铌酸锂(PPLN)晶体提出并设计了一种高效紧凑腔内倍频绿光激光器。该激光系统采用808 nm激光二极管(LD)端面直接抽运Nd∶YVO4晶体,进而利用极化周期为7 μm 的PPLN 晶体倍频产生532 nm 绿光。通过在Nd∶YVO4和PPLN 晶体端面镀膜构成激光腔镜,无需采用任何光学透镜、反射镜等分立光学元件,大大降低了系统体积和成本。实验结果显示,当激光器谐振腔腔长为12 mm,抽运功率为4.1 W 时,绿光输出功率可达1.343 W,相应的光-光转换效率达32.8%。当LD 抽运功率稳定在3.33 W 时,2 h内的绿光输出功率波动小于5%。

Abstract

A compact and highly efficient intracavity frequency- doubled green laser has been researched and designed based on periodically poled lithium niobate (PPLN) crystal. The laser system adopts a 808 nm laser diode (LD) end directly pumped Nd∶YVO4 crystal, then uses a poling period of 7 mm of PPLN crystal to generate 532 nm green light by frequency-doubling. The coating Nd∶YVO4 and PPLN crystals compose a laser cavity, without using any discrete optical components such as optical lens, reflector, thus reducing the volume and cost of the system. The experimental results show that with the resonator cavity length being set at 12 mm, pump power at 4.1 W, the green light output power of 1.343 W and the corresponding optical- optical conversion efficiency of 32.8% are achieved. Controlling the incident pump power at about 3.33 W, the fluctuation of green light output power within 2 h is less than 2%.

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中图分类号:O437.4

DOI:10.3788/cjl201542.1102002

所属栏目:激光物理

责任编辑:宋梅梅  信息反馈

基金项目:国家自然科学基金(11374161),江苏省信息与通信工程优势学科,中国博士后科学基金(2015M571781),江苏省博士后基金(1401022B)

收稿日期:2015-04-24

修改稿日期:2015-07-11

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作者单位    点击查看

桂诗信:南京信息工程大学江苏省气象探测与信息处理重点实验室, 江苏 南京 210044
常建华:南京信息工程大学江苏省气象探测与信息处理重点实验室, 江苏 南京 210044南京信息工程大学江苏省大气环境与装备技术协同创新中心, 江苏 南京 210044南京信息工程大学滨江学院电子工程系, 江苏 南京 210044
严娜:南京信息工程大学江苏省气象探测与信息处理重点实验室, 江苏 南京 210044
郭跃:南京信息工程大学江苏省气象探测与信息处理重点实验室, 江苏 南京 210044
伍煜:南京信息工程大学江苏省气象探测与信息处理重点实验室, 江苏 南京 210044

联系人作者:桂诗信(guishixin0001@163.com)

备注:桂诗信(1989—),男,硕士研究生,主要从事非线性光频转换方面的研究。

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引用该论文

Gui Shixin,Chang Jianhua,Yan Na,Guo Yue,Wu Yu. A Compact and Highly Efficient Intracavity Frequency-DoubledGreen Laser Based on Periodically Poled Lithium Niobate[J]. Chinese Journal of Lasers, 2015, 42(11): 1102002

桂诗信,常建华,严娜,郭跃,伍煜. 一种基于铌酸锂晶体的高效紧凑腔内倍频绿光激光器[J]. 中国激光, 2015, 42(11): 1102002

被引情况

【1】任坤,刘亚丽,任晓斌,范景洋. 利用光强分布设计多波长频率转换器件. 光学学报, 2016, 36(5): 519002--1

【2】林博鑫,董俊. 直接抽运Cr,Nd∶YAG/GTR-KTP腔内倍频高效稳定自调Q绿光激光器. 激光与光电子学进展, 2017, 54(4): 41403--1

【3】崔建丰,王迪,张亚男,高涛,岱钦,姚俊. LD侧面抽运Nd∶YVO4 532 nm准连续绿光激光器. 激光与光电子学进展, 2017, 54(4): 41402--1

【4】张健,张津超,张庆茂,潘晓铭,于艳玲,曹宇,冯爱新,唐霞辉. 双波长激光束同轴复合焊接系统设计与实验研究. 中国激光, 2017, 44(6): 602007--1

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