Automated alignment research on off-axis eight-pass laser amplifier

Chen Zhifei; Yao Ke; Fan Chen; Tang Jun; Lü Mengjie; Lu Zhenhua; Gao Song; Xie Xudong; Fu Xuejun; Fan Mengqiu; Zheng Kuixing; Chen Bo; Peng Zhitao; Feng Bin

doi:10.11884/HPLPB202133.210207

Volume 33 Issue 9

Sep. 2021

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2021 > 33(9): 091004

Chen Zhifei, Yao Ke, Fan Chen, et al. Automated alignment research on off-axis eight-pass laser amplifier[J]. High Power Laser and Particle Beams, 2021, 33: 091004. doi: 10.11884/HPLPB202133.210207

Citation:

Chen Zhifei, Yao Ke, Fan Chen, et al. Automated alignment research on off-axis eight-pass laser amplifier[J]. High Power Laser and Particle Beams, 2021, 33: 091004. doi: 10.11884/HPLPB202133.210207

Chen Zhifei, Yao Ke, Fan Chen, et al. Automated alignment research on off-axis eight-pass laser amplifier[J]. High Power Laser and Particle Beams, 2021, 33: 091004. doi: 10.11884/HPLPB202133.210207

Citation:

Chen Zhifei, Yao Ke, Fan Chen, et al. Automated alignment research on off-axis eight-pass laser amplifier[J]. High Power Laser and Particle Beams, 2021, 33: 091004. doi: 10.11884/HPLPB202133.210207

PDF( 944 KB)

Automated alignment research on off-axis eight-pass laser amplifier

doi: 10.11884/HPLPB202133.210207

1.
Laser Fusion Research Center, CAEP, Mianyang 621900, China

More Information

Author Bio:
Chen Zhifei, zfchen950906@163.com
Corresponding author: Xie Xudong, Xiexudong@caep.cn
Received Date: 2021-05-27
Rev Recd Date: 2021-08-20

Available Online: 2021-09-10

Publish Date: 2021-09-15

Abstract

Abstract

We present a technical research experimentally demonstrating automated alignment on off-axis eight-pass laser amplifier. The mentioned technique aims to replace manual alignment method with automatic alignment system on the multipass complex laser amplifier, of which the efficiency, accuracy, and output beam quality would improve spectacularly. This technique realizes precise reference mark of pinhole spatial centre position in the spatial filter of the off-axis eight-pass laser amplifier via main laser lighting and image relaying system. The far-field facula is processed by edge detection so that the beam pointing centre is obtained. Based on the difference between the beam centre position and reference, we realizes closed loop automated alignment on the amplifier system via two-dimensionally controlling specific reflector frames. Additionally we indicate that the experimental results of the research fairly satisfied requirements for efficiency and accuracy of the off-axis eight-pass laser amplifier, and verified feasibility of the alignment technique applied in the amplifier as well.
- laser amplifier,
- off-axis eight-pass amplifying,
- automated alignment,
- edge detection

FullText(HTML)

References(16)

References

[1]	Mason P, Divoký M, Ertel K, et al. Kilowatt average power 100 J-level diode pumped solid state laser[J]. Optica, 2017, 4(4): 438-439. doi: 10.1364/OPTICA.4.000438
[2]	Zeng Xiaoming, Zhou Kainan, Zuo Yanlei, et al. Multi-petawatt laser facility fully based on optical parametric chirped-pulse amplification[J]. Optics Letters, 2017, 42(10): 2014-2017. doi: 10.1364/OL.42.002014
[3]	Boehly T R, Brown D L, Craxton R S, et al. Initial performance results of the OMEGA laser system[J]. Optics Communications, 1997, 133(1/6): 495-506.
[4]	Norman M J, Andrew J E, Bett T H, et al. Multipass reconfiguration of the HELEN Nd: glass laser at the atomic weapons establishment[J]. Applied Optics, 2002, 41(18): 3497-3505. doi: 10.1364/AO.41.003497
[5]	Koechner W. Solid-state laser engineering[M]. 4th ed. Berlin: Springer, 1996.
[6]	Bowers M, Burkhart S, Cohen S, et al. The injection laser system on the National Ignition Facility[C]//Proceedings of SPIE 6451, Solid State Lasers XVI: Technology and Devices. 2006: 64511M.
[7]	Spaeth M L, Manes K P, Kalantar D H, et al. Description of the NIF laser[J]. Fusion Science and Technology, 2016, 69(1): 25-145. doi: 10.13182/FST15-144
[8]	Wang Chao, Wei Hui, Wang Jiangfeng, et al. 1 J, 1 Hz lamp-pumped high-gain Nd: phosphate glass laser amplifier[J]. Chinese Optics Letters, 2017, 15: 011401. doi: 10.3788/COL201715.011401
[9]	Yao Ke, Gao Song, Tang Jun, et al. Off-axis eight-pass neodymium glass laser amplifier with high efficiency and excellent energy stability[J]. Applied Optics, 2018, 57(29): 8727-8732. doi: 10.1364/AO.57.008727
[10]	Yao Ke, Xie Xudong, Tang Jun, et al. An efficient off-axis multi-pass Nd: glass amplifier utilizing a birefringence crystal[J]. Laser Physics, 2019, 29: 115002. doi: 10.1088/1555-6611/ab44b7
[11]	Zacharias R A, Beer N R, Bliss E S, et al. Alignment and wavefront control systems of the National Ignition Facility[J]. Optical Engineering, 2004, 43(12): 2873-2884. doi: 10.1117/1.1815331
[12]	Ye Chengliang, Shang Jianhua, He Yan. Study of laser beam autocollimation system[J]. Laser & Optoelectronics Progress, 2017, 54: 051201.
[13]	Wang Shenzhen, Yuan Qiang, Zeng Fa, et al. Beam alignment based on two-dimensional power spectral density of a near-field image[J]. Optics Express, 2017, 25(22): 26591-26599. doi: 10.1364/OE.25.026591
[14]	Burkhart S C, Bliss E, Di Nicola P, et al. National Ignition Facility system alignment[J]. Applied Optics, 2011, 50(8): 1136-1157. doi: 10.1364/AO.50.001136
[15]	Wen Wenbo, Du Wei. An abstract on the ant colony algorithms[J]. Automation in Petro-chemical Industry, 2002(1): 19-21.
[16]	Liu Wen, Bie Hongxia. Colony optimization algorithm on noisy image edge detection[J]. Software, 2013, 34(12): 256-259.