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紧凑高效吉赫兹1.34 μm Nd∶GdVO4/V∶YAG调Q锁模激光器

Compact and Efficient GHz Nd∶GdVO4/V∶YAG Q-Switched Mode-Locked Laser at 1.34 μm

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摘要

提出了一种紧凑高效的吉赫兹(GHz)1.34 μm Nd∶GdVO4/V∶YAG调Q锁模激光器。采用激光二极管进行端面抽运,将紧凑线性腔结构与透过率为10%的输出耦合镜相结合。优化了激光晶体的相关实验条件,理论分析了激光晶体的相关特性。实验中使用了Nd∶GdVO4晶体,Nd3+离子掺杂质量分数为0.2%,V∶YAG晶体的初始透过率为83%。利用该晶体实现了重复频率高达2 GHz的锁模脉冲,所得锁模调制深度接近100%,调Q锁模激光器的最大输出功率可达715 mW。基于波动机制理论,模拟了单个调Q包络下的锁模脉冲图形,所得理论结果与实验结果相符。

Abstract

A compact and efficient GHz Nd∶GdVO4/V∶YAG Q-switched mode-locked laser at 1.34 μm is proposed. A laser diode is used for end-pumping, and a compact and linear cavity is combined with an output coupler with transmittance of 10%. Correlation experimental conditions of laser crystal are optimized, and correlation properties of laser crystal are theoretical analyzed. A Nd∶GdVO4 crystal is used in experiment. The Nd3+ doping mass concentration is 0.2%, and the initial transmission of V∶YAG crystal is 83%. The repetition rate of mode-locked pulse is up to 2 GHz, and nearly 100% mode-locked modulation depth can be obtained. The maximum output power of the Q-switched mode-locked laser is 715 mW. Based on the fluctuation mechanism theory, a mode-locked pulse figure of single Q-switched envelope is simulated, and the simulation results agree well with the experimental results.

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中图分类号:TN248.1

DOI:10.3788/lop54.061407

所属栏目:激光器与激光光学

基金项目:国家自然科学基金(61108021)、中央高校基本科研业务费专项资金(2013JBM091,S16JB00010)

收稿日期:2017-01-22

修改稿日期:2017-02-22

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作者单位    点击查看

曹秋园:北京交通大学理学院激光研究所, 北京 100044教育部发光和光信息重点实验室, 北京 100044
彭继迎:北京交通大学理学院激光研究所, 北京 100044教育部发光和光信息重点实验室, 北京 100044
李祚涵:北京交通大学理学院激光研究所, 北京 100044教育部发光和光信息重点实验室, 北京 100044
韩 鸣:北京交通大学理学院激光研究所, 北京 100044教育部发光和光信息重点实验室, 北京 100044

联系人作者:曹秋园(14121563@bjtu.edu.cn)

备注:曹秋园(1991-),女,硕士研究生,主要从事全固态激光器方面的研究。

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引用该论文

Cao Qiuyuan,Peng Jiying,Li Zuohan,Han Ming. Compact and Efficient GHz Nd∶GdVO4/V∶YAG Q-Switched Mode-Locked Laser at 1.34 μm[J]. Laser & Optoelectronics Progress, 2017, 54(6): 061407

曹秋园,彭继迎,李祚涵,韩 鸣. 紧凑高效吉赫兹1.34 μm Nd∶GdVO4/V∶YAG调Q锁模激光器[J]. 激光与光电子学进展, 2017, 54(6): 061407

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