7.1 kW coherent beam combining system based on a seven-channel fiber amplifier array

被引：61

作者：

Ma, Pengfei ^{[1
]}

Chang, Hongxiang ^{[1
]}

Ma, Yanxing ^{[1
]}

Su, Rongtao ^{[1
]}

Qi, Yunfeng ^{[2
]}

Wu, Jian ^{[1
]}

Li, Can ^{[1
]}

Long, Jinhu ^{[1
]}

Lai, Wenchang ^{[1
]}

Chang, Qi ^{[1
]}

Hou, Tianyue ^{[1
]}

Zhou, Pu ^{[1
]}

Zhou, Jun ^{[2
]}

机构：

[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai Key Lab All Solid State Laser & Appl Tec, Shanghai 201800, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2021年 / 140卷

基金：

中国国家自然科学基金;

关键词：

Phase control; Fiber amplifier; Stochastic parallel gradient descent algorithm; HIGH-POWER; PHASE-LOCKING; COMBINATION;

D O I：

10.1016/j.optlastec.2021.107016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Coherently combining of seven-channel narrow-linewidth, linear-polarized, kW-level power all-fiber amplifiers has been successfully demonstrated by using the stochastic parallel gradient descent (SPGD) algorithm. The seven polarization-maintained fiber amplifiers are tiled by a collimator array with a high lenslet filling factor (-95%). Total emitting power is -8 kW, and -7.1 kW combined output power is achieved and the contrast of the far-field intensity pattern is measured to be -86% when the system is in the closed loop. This work could provide practical reference on scaling the output power of the tiled aperture coherent beam combining system.

引用

页数：5

共 50 条

[1] Coherent combining of a 4 kW, eight-element fiber amplifier array
Yu, C. X.
Augst, S. J.
Redmond, S. M.
Goldizen, K. C.
Murphy, D. V.
Sanchez, A.
Fan, T. Y.
OPTICS LETTERS, 2011, 36 (14) : 2686 - 2688
[2] Diffractive coherent combining of a 2.5 kW fiber laser array into a 1.9 kW Gaussian beam
Redmond, Shawn M.
Ripin, Daniel J.
Yu, Charles X.
Augst, Steven J.
Fan, Tso Yee
Thielen, Peter A.
Rothenberg, Joshua E.
Goodno, Gregory D.
OPTICS LETTERS, 2012, 37 (14) : 2832 - 2834
[3] Coherent Beam Combining of Fiber Amplifiers in a kW Regime
Flores, Angel
Shay, Thomas M.
Lu, Chunte A.
Robin, Craig
Pulford, Benjamin
Sanchez, Anthony D.
Hult, Dane W.
Rowland, Ken B.
2011 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2011,
[4] Coherent beam combination of 1.08 kW fiber amplifier array using single frequency dithering technique
Ma, Yanxing
Wang, Xiaolin
Leng, Jinyong
Xiao, Hu
Dong, Xiaolin
Zhu, Jiajian
Du, Wenbo
Zhou, Pu
Xu, Xiaojun
Si, Lei
Liu, Zejin
Zhao, Yijun
OPTICS LETTERS, 2011, 36 (06) : 951 - 953
[5] Coherent combining of a seven-element hexagonal fiber array
Fan, Xinyan
Liu, Jingjiao
Liu, Jinsheng
Wu, Jingli
OPTICS AND LASER TECHNOLOGY, 2010, 42 (02): : 274 - 279
[6] Coherent beam combining of 137 W 2x2 fiber amplifier array
Wang, Xiaolin
Ma, Yanxing
Zhou, Pu
He, Bing
Xiao, Hu
Xue, Yuhao
Liu, Chi
Li, Zhen
Xu, Xiaojun
Zhou, Jun
Liu, Zejin
Zhao, Yijun
OPTICS COMMUNICATIONS, 2011, 284 (08) : 2198 - 2201
[7] 1.8-kW simultaneous spectral and coherent combining of three-tone nine-channel all-fiber amplifier array
Wang, X.
Leng, J.
Zhou, P.
Ma, Y.
Xu, X.
Liu, Z.
APPLIED PHYSICS B-LASERS AND OPTICS, 2012, 107 (03): : 785 - 790
[8] 1.8-kW simultaneous spectral and coherent combining of three-tone nine-channel all-fiber amplifier array
X. Wang
J. Leng
P. Zhou
Y. Ma
X. Xu
Z. Liu
Applied Physics B, 2012, 107 : 785 - 790
[9] Coherent Beam Combining of a Fiber Lasers Array Based on Cascaded Phase Control
Su, Rongtao
Zhang, Zhixin
Zhou, Pu
Ma, Yanxing
Wang, Xiaolin
Xu, Xiaojun
IEEE PHOTONICS TECHNOLOGY LETTERS, 2016, 28 (22) : 2585 - 2588
[10] Active coherent beam combining of a five-element, 800 W nanosecond fiber amplifier array
Su, Rongtao
Zhou, Pu
Wang, Xiaolin
Zhang, Hanwei
Xu, Xiaojun
OPTICS LETTERS, 2012, 37 (19) : 3978 - 3980

← 1 2 3 4 5 →