Cryogenic Yb：YAG solid state pulsed laser amplifier

Li Lei; Wang Jianlei; Cheng Xiaojin; Liu Jing; Shi Xiangchun; Chen Weibiao

Compared with Nd:YAG, the Yb:YAG laser system is more suitable to produce at several Hz repetition rates high pulsed energy laser beam. A LD pumped Yb:YAG solid state pulsed MOPA laser system at cryogenic temperature was reported. The amplifier chain was composed of three parts: regenerative amplifier seed, pre-amplifier and main amplifier. The thermal management was realized by liquid nitrogen cooling sink on which laser crystal was compressed using indium and gold foil as thermal interface. The coating film damage at cryogenic and vacuum environment was studied, which directly affected the pumped and extracted parameter design. A 1 030 nm pulse 10 Hz, 10 ns laser output energy 3 J was achieved. At last, in order to improve laser energy scalability the further step was analyzed.

1. Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

Received Date: 2012-09-05

Rev Recd Date: 2012-10-03

Publish Date: 2013-05-25

Key words:

Abstract: Compared with Nd:YAG, the Yb:YAG laser system is more suitable to produce at several Hz repetition rates high pulsed energy laser beam. A LD pumped Yb:YAG solid state pulsed MOPA laser system at cryogenic temperature was reported. The amplifier chain was composed of three parts: regenerative amplifier seed, pre-amplifier and main amplifier. The thermal management was realized by liquid nitrogen cooling sink on which laser crystal was compressed using indium and gold foil as thermal interface. The coating film damage at cryogenic and vacuum environment was studied, which directly affected the pumped and extracted parameter design. A 1 030 nm pulse 10 Hz, 10 ns laser output energy 3 J was achieved. At last, in order to improve laser energy scalability the further step was analyzed.

HTML

Reference (15)

[1]	Wang Mingzhe, Duan Wentao, Cao Dingxiang, et al. Laser diode pumped cryogenically cooled Yb:YAG laser design for rep-rated and high-energy output[J]. High Power Laser and Particle Beams, 2010, 22(1): 36-40. (in Chinese)王明哲, 段文涛, 曹丁象, 等. 激光二极管泵浦的重复频率大能量低温Yb:YAG激光器设计[J]. 强激光与粒子束, 2010, 22(1): 36-40.
[2]
[3]
[4]	Dai Mei, Jin Guangyong, Wang Chao, et al. 100 MW high peak power and high beam quality Nd:YAG laser[J]. Infrared and Laser Engineering, 2012, 41(3): 612-616. (in Chinese)戴梅, 金光勇, 王超, 等. 100 MW级高峰值功率高光束质量Nd:YAG激光器[J]. 红外与激光工程, 2012, 41(3): 612-616.
[5]
[6]	Jiang Dongzhen, Duan Wentao, Xu Meijian, et al. High power laser diode end-pumped Yb:YAG repeat frequency laser[J]. Chinese Journal of Lasers, 2009, 36(7): 1831-1834. (in Chinese)蒋东镇, 段文涛, 徐美健, 等. 高功率激光二极管端面抽运重复频率Yb:YAG激光器[J]. 中国激光, 2009, 36(7): 1831-1834.
[7]
[8]	Fan T Y, Crow T, Hoden B. Cooled Yb:YAG for high-power solid state lasers[C]//SPIE, 1998, 3381: 200-205.
[9]	Rand D, Miller D, Ripin D J, et al. Cryogenic Yb3+-doped materials for pulsed solid-state laser applications[J]. Optical Materials Express, 2011, 1(3): 434-450.
[10]
[11]	Brendan A R, Alden H C, Keith A W, et al. Development of high energy diode-pumped thick-disk Yb:YAG chirped-pulse-amplification lasers[J]. IEEE Journal of Quantum Electronics, 2012, 48(6): 827-835.
[12]
[13]	Wang Mingzhe, Li Mingzhong, Zheng Jiangang, et al. Application of heat-pipe cooling in Yb:YAG laser amplifier[J]. Infrared and Laser Engineering, 2011, 40(8): 1457-1460. (in Chinese)王明哲, 李明中, 郑建刚, 等. 热管冷却技术在Yb:YAG激光放大器中的应用[J]. 红外与激光工程, 2011, 40(8): 1457-1460.
[14]
[15]	Wang J F, Jiang Y E, Li X C, et al. Research of diode-pumped cryogenic Yb:YAG amplification at 10Hz repetition rate[C]//SPIE, 2011, 7916: 79160M-1-8.

Cryogenic Yb：YAG solid state pulsed laser amplifier

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Related

Proportional views