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高功率高光束质量带内泵浦皮秒放大激光系统

High power high beam quality in-band pumping picosecond amplification laser system

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摘要

利用片状Nd:YVO4晶体为增益介质,研究了部分端面泵浦板条带内泵浦皮秒放大激光系统.发展了部分端面泵浦板条放大器的模式匹配方式,充分结合了带内泵浦和部分端面泵浦板条放大器二者的优势,最终实现了平均功率60.7 W、脉冲宽度16.8 ps、重复频率20 MHz的皮秒激光放大输出,光-光转换效率达到25.3%,当放大输出功率50 W时,光束质量因子(M2)为1.55.

Abstract

The INNOSLAB in-band pumping picosecond amplification laser system is studied with flake Nd:YVO4 crystal.A new method for mode-matching was demonstrated to simplify the amplifier design,integrating the benefits of the in-band pumping technique and the excellent thermal management of the INNOSLAB amplifier design.As a result,an average of 60.7 W,pulse width of 16.8 ps,repetition frequency of 20 MHz laser was achieved with optic to optic efficiency of 25.3%.The beam quality of 1.55 was obtained with 50 W output laser.

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中图分类号:TN248.1

DOI:10.11884/hplpb201527.061001

所属栏目:高功率激光与光学

收稿日期:2014-12-11

修改稿日期:2015-03-06

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作者单位    点击查看

毛小洁:华北光电技术研究所 固体激光技术重点实验室, 北京 100015
秘国江:华北光电技术研究所 固体激光技术重点实验室, 北京 100015
庞庆生:华北光电技术研究所 固体激光技术重点实验室, 北京 100015
邹跃:华北光电技术研究所 固体激光技术重点实验室, 北京 100015
吕华昌:华北光电技术研究所 固体激光技术重点实验室, 北京 100015

联系人作者:毛小洁(maoxiaojie991220@163.com)

备注:毛小洁(1981—),男,硕士,主要从事大能量固体激光技术和高功率皮秒激光技术研究.

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引用该论文

Mao Xiaojie,Bi Guojiang,Pang Qingsheng,Zou Yue,Lü Huachang. High power high beam quality in-band pumping picosecond amplification laser system[J]. High Power Laser and Particle Beams, 2015, 27(6): 061001

毛小洁,秘国江,庞庆生,邹跃,吕华昌. 高功率高光束质量带内泵浦皮秒放大激光系统[J]. 强激光与粒子束, 2015, 27(6): 061001

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