[1] Lin Honghuan, Guo Chao, Zhao Pengfei, et al. Design and experiment of 10 kW class monolithic fiber pump coupling device[J]. Infrared and Laser Engineering, 2016, 45(S2):S206003. (in Chinese)
[2] Shi Wei, Fang Qiang, Li Jinhui, et al. High-performance fiber lasers for LIDARs[J]. Infrared and Laser Engineering, 2017, 46(8):0802001. (in Chinese)
[3] Liu Liang, Cui Junwei, Li Wenjing, et al. Yb3+-doped double-clad quasi-continuous wave fiber laser pumped by laser diode[J]. Chinese Optics, 2012, 5(6):664-670. (in Chinese)
[4] Shen Zhaoguo, Zhang Ping. A neodymium-doped fiber laser and frequency doubling numerical simulation[J]. Chinese Optics, 2008, 1(1):105-111. (in Chinese)
[5] Hanna D C, Percival R W, Perry I R, et al. Continuous-wave oscillation of a monomode ytterbium-doped fiber laser[J]. Electron Lett, 1988, 24(17):1111-1113.
[6] Jeong Y E, Sahu J, Payne D, et al. Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power[J]. Optics Express, 2004, 12(25):6088-6092.
[7] Lei Chengmin, Gu Yanran, Chen Zilun, et al. Developments of high power all-fiber side-pumping combiner[J]. Optics and Precision Engineering, 2018, 26(7):1561-1567. (in Chinese)
[8] Liu Chaoping, Liao Lei, Li Jinyan. Research progress on photodarkening of Yb-doped fiber lasers[J]. Lasers Optoelectronics Progress, 2016, 53(7):070002. (in Chinese)
[9] Wang Zhiyong, Zhang Jing, Ge Tingwu, et al. Highly coupling efficient mode-field adaptors for high power fiber lasers[J]. Optics and Precision Engineering, 2015, 23(2):319-324. (in Chinese)
[10] Wang Zehui, Xiao Qirong, Wang Xuejiao, et al. 3000 W tandem pumped all-fiber laser based on domestic fiber[J]. Acta Phys Sin, 2018, 67(2):124-130. (in Chinese)
[11] Zheng Jinkun, Zhao Wei, Zhao Baoyin, et al. 4.62 kW excellent beam quality laser output with a low-loss Yb/Ce co-doped fiber fabricated by chelate gas phase deposition technique[J]. Optical Materials Express, 2017, 7(4):1259-1266. (in Chinese)
[12] Maitreyee Saha, Sourav Das Chowdhury, Nishant Kumar Shekhar, et al. Yb-doped pedestal silica fiber through vapor phase doping for pulsed laser applications[J]. IEEE Photonics Technology Letters, 2016, 28(9):1022-1025.
[13] Koponen J J, Petit L, Kokki T, et al. Progress in direct nanoparticle deposition for the development of the next generation fiber lasers[J]. Optical Engineering, 2011, 50(11):111605.