[1] [1] REN G G, YI W W, QI Y, et al. U.S. theater and strategic UVA-borne laser weapon[J]. Laser & Optoelectronics Progress, 2017, 54(10):100002(in Chinese).

[2] [2] ZERVAS M N, CODEMARD C A. High power fiber lasers: A review[J]. IEEE Journal of Selected Topics in Quantum Electronics, 2014,20(5):1-23.

[3] [3] YANG Ch Sh, XU Sh H, ZHOU J, et al. Research advance on the key technology of high-power fiber laser materials and components[J]. Scientia Sinica Technologica, 2017,47(10):1038-1048(in Chinese).

[4] [4] LOU Q H, ZHOU J, WANG Zh J, et al. Analysis of high-power fiber laser weapons[J]. Laser Technology, 2003,27(3):161-165(in Ch-inese).

[5] [5] WANG X L, ZHOU P, SU R T, et al. Current situation, tendency and challenge of coherent combining of high power fiber lasers[J]. Chinese Journal of Lasers, 2017, 44(2):0201001 (in Chinese).

[6] [6] ZHOU P. Study on coherent beam combination technology of fiber lasers[D]. Wuhan: National University of Defense Technology, 2009:104-105(in Chinese).

[7] [7] DONG H Ch, TAO Ch X, ZHAO Y A, et al. Combination characte-ristics analysis of Gaussian beams[J]. High Power Laser and Particle Beams, 2009,21(2):171-176(in Chinese).

[8] [8] ZHOU P, LIU Z, XU X, et al. Comparative study on the propagation performance of coherently combined and incoherently combined beams[J]. Optics Communications, 2009, 282(8):1640-1647.

[9] [9] XIAO R, HOU J, JIANG Z F. Coherent combining of fiber lasers[J]. Laser Technology, 2005, 29(5):516-518(in Chinese).

[10] [10] FLORES A, EHRENREICH T, HOLTEN R, et al. Multi-kW coherent combining of fiber lasers seeded with pseudo random phase modulated light[J]. Proceedings of the SPIE, 2016, 9728:97281Y.

[11] [11] IPG PHOTONICS CORPORATION. IPG photonics successfully tests world’s first 10 kilowatt single-mode production laser[EB/OL]. (2009-06-17)[ 2018-12-10]. https://www.laserfocusworld.com/articles/2009/06/ipg-photonics-offers-worlds-first-10-kw-single-mode-production-laser.html.

[12] [12] SU Y, WAN M. High energy laser system[M]. Beijing: National Defense Industry Press, 2006:14-16(in Chinese).

[13] [13] LAWSON J K, AUERBACH J M, ENGLISH R E, et al. NIF optical specification—the importance of the RMS gradient[J]. Proceedings of the SPIE, 1999, 3932:336-342.

[14] [14] FU F X, ZHANG B. Effect of wave-front phase distortion correction[J]. High Power Laser and Particle Beams, 2011, 23(2):375-380(in Chinese).

[15] [15] SU Y, WAN M. High energy laser system[M]. Beijing: National Defense Industry Press, 2004:42-44(in Chinese).

[16] [16] HE Y X, LI X Y. Analysis of influence of CCD’s nonlinear response characterization on measurement results of focal spot and beam quality[J]. Chinese Journal of Lasers, 2012, 39(4):0408001(in Chinese).