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高峰值功率高光束质量光纤-固体混合放大激光系统

High Peak Power and High Beam Quality Fiber-Solid Hybrid Amplification Laser System

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摘要

高峰值功率以及高光束质量的激光光源在激光加工等领域具有重要的应用价值。利用重复频率为50 kHz、脉宽为3.9 ps、平均功率为10.9 mW的光纤种子光源, 经过两级固体双通放大, 最终得到平均功率为27.65 W, 峰值功率达到65 MW的激光输出。第一级放大器为端面抽运Nd∶YVO4放大级, 第二级放大器为侧面抽运Nd∶YAG放大级。通过利用球差补偿理论设计的双通放大结构以及调节放大级中的填充因子, 控制最终激光输出的光束质量, 得到输出激光的光束质量因子M2=1.30。

Abstract

High peak power and high beam quality laser is vitally valuable for applications in laser machining and other fields. A fiber laser with repetition frequency of 50 kHz, pulse width of 3.9 ps, and average power of 10.9 mW is used as the seed source. The average output power of 27.65 W is obtained in double-passing amplifier of two stages, with the pulse peak power of 65 MW. The first amplifier stage is end-pumped Nd∶YVO4 solid amplifier, and the second is side-pumped Nd∶YAG solid amplifier. The beam quality is preserved by a double-passing configuration for spherical-aberration compensation. By optimizing the beam filling factor in each solid amplifier, the M2 factor of the output beam reaches 1.30 finally.

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中图分类号:TN248.1

DOI:10.3788/CJL201845.0401007

所属栏目:激光器件与激光物理

基金项目:国家自然科学基金(61575172)、浙江省自然科学基金(LZ15F050001)、中央高校基本科研业务费专项资金、衢州市科技计划(2016Y012)、衢州学院师资队伍建设专项经费(BSYJ201705)

收稿日期:2017-07-21

修改稿日期:2017-10-31

网络出版日期:--

作者单位    点击查看

汪勇:浙江大学现代光学仪器国家重点实验室, 浙江 杭州 310027
刘斌:浙江大学现代光学仪器国家重点实验室, 浙江 杭州 310027
叶志斌:衢州学院电气与信息工程学院, 浙江 衢州 324000
徐霜馥:浙江大学现代光学仪器国家重点实验室, 浙江 杭州 310027
唐超:浙江大学现代光学仪器国家重点实验室, 浙江 杭州 310027
张翔:江苏曙光光电有限公司, 江苏 扬州 225009
郑峰:浙江大学现代光学仪器国家重点实验室, 浙江 杭州 310027
刘崇:浙江大学现代光学仪器国家重点实验室, 浙江 杭州 310027
刘东:浙江大学现代光学仪器国家重点实验室, 浙江 杭州 310027
项震:浙江大学现代光学仪器国家重点实验室, 浙江 杭州 310027

联系人作者:刘崇(chongliu78@hotmail.com)

备注:汪勇(1991-), 男, 硕士研究生, 工程师, 主要从事固体激光器方面的研究。E-mail: wang0556yong@163.com

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引用该论文

Wang Yong,Liu Bin,Ye Zhibin,Xu Shuangfu,Tang Chao,Zhang Xiang,Zheng Feng,Liu Chong,Liu Dong,Xiang Zhen. High Peak Power and High Beam Quality Fiber-Solid Hybrid Amplification Laser System[J]. Chinese Journal of Lasers, 2018, 45(4): 0401007

汪勇,刘斌,叶志斌,徐霜馥,唐超,张翔,郑峰,刘崇,刘东,项震. 高峰值功率高光束质量光纤-固体混合放大激光系统[J]. 中国激光, 2018, 45(4): 0401007

被引情况

【1】董彬,刘磊,唐晓军,刘洋. 100 W高功率Nd∶YAG皮秒板条激光放大器. 中国激光, 2019, 46(11): 1101004--1

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