[1] Newburgh G A, Dubinskii M. A diode-pumped Nd: YVO4 thin disk laser with a hetero-composite gain element and dual-face cooling[J]. Laser Physics Letters, 10, 105807(2013).

[2] Fermann M E, Hartl I. Ultrafast fibre lasers[J]. Nature Photonics, 7, 868-874(2013).

[3] He X R. High power semiconductor laser and its application in military[J]. Semiconductor Information, 32, 26-33(1995).

[4] Yu J J, Tan L Y, Ma J et al. Progress on beam shaping of high-power laser diode arrays[J]. Laser & Optoelectronics Progress, 45, 34-42(2008).

[5] Yu J H, Guo L N, Wu H L et al. High brightness beam shaping and fiber coupling of laser-diode bars[J]. Applied Optics, 54, 3513-3516(2015).

[6] Matthews D, Kleine K, Krause V et al. A 15-kW fiber-coupled diode laser for pumping applications[J]. Proceedings of SPIE, 8241, 824103(2012).

[7] Grenier P, Taillon Y, Labranche B et al. Symmetrization device and laser diode system provided with the same[P].

[8] Werner S, Stefan G, Ralf M et al. Microoptical device with mirrors[P].

[9] Gao X, Shinoda K, Saitoh M et al. Laser light source and an optical system for shaping light from a laser-bar-stack[P].

[10] Li Y D, Hua W H, Wang H Y et al. Research development of linewidth narrowing of high power diode lasers[J]. Laser & Optoelectronics Progress, 47, 091405(2010).

[11] Yu J H, Guo L N, Wu H L et al. Beam shaping design for compact and high-brightness fiber-coupled laser-diode system[J]. Applied Optics, 54, 5759-5763(2015).

[12] Pelegrina-Bonilla G, Mitra T. Compensation of the laser diode smile by the use of micro-optics[J]. Applied Optics, 57, 3329-3333(2018).

[13] Ding B, Zhao P F, Duan C R et al. Design and simulation of high brightness fiber coupling system of green laser diodes[J]. Chinese Journal of Lasers, 48, 0501016(2021).

[14] Zhang J Y, Peng H Y, Cao J Set a1. 15 kW fiber coupled semiconductor laser quenching light source[J]. Chinese Journal of Lasers, 50, 0501004(2023).

[15] Huang Z L, Guo J, Fu Y Y. Various methods for evaluating laser beam quality[J]. Laser Journal, 25, 1-3(2004).

[16] Lin G Y, Zhao P F, Dong Z Y et al. Beam-shaping technique for fiber-coupled diode laser system by homogenizing the beam quality of two laser diode stacks[J]. Optics & Laser Technology, 123, 105919(2020).