[1] XIA Changming, ZHOU Guiyao. Progress and prospect of microstructured optical fibers[J]. Laser & Optoelectronics Progress, 56, 170603(2019).

[2] YUAN Quan, WANG Tianshu, MA Wanzhuo et al. Convertible all polarization-maintaining fiber laser in low threshold mode-locked state[J]. Journal of Applied Optics, 42, 755-760(2021).

[3] ZHU Hongtao, LOU Qihong, ZHOU Jun et al. Theoretical study on the heat dissipation ability of double-cladding photonic crystal fiber[J]. Acta Photonica Sinica, 38, 60-63(2009).

[4] ZHAO Lijuan, LIANG Ruoyu, XU Zhiniu. Review of designs and applications of photonic crystal fiber[J]. Semiconductor Optoelectronics, 41, 464-471(2020).

[5] SUN Guoyu, YANG Junting, BAO Mingran et al. Development status and application of high power fiber laser[J]. Modern Physics, 103-112(2020).

[6] JIA Zhen'an, LI Li, QIAO Xueguang et al. High flattening C+L-band erbium-doped superfluorescent light source with three-stage two-pumping structure[J]. Optics and Precision Engineering, 18, 558(2010).

[7] YAMAMOTO Y, KAWAGUCHI Y, HIRANO M. Low-loss and low-nonlinearity pure-silica-core fiber for C- and L-band broadband transmission[J]. Journal of Lightwave Technology, 34, 321-326(2016).

[8] XUE Lu, ZHANG Yani, ZHU Yuyu et al. Optimization design of ultra-low loss low nonlinear flatten dispersion photonic crystal fiber[J]. Acta Photonica Sinica, 47, 1106005(2018).

[9] FIABOE K F, KUMAR P, ROY J S. Photonic crystal fibers with flattened zero dispersion for supercontinuum generation[J]. Advanced Electromagnetics, 8, 7-15(2019).

[10] SHE Y L, ZHOU D J, CHEN X Y et al. Bend-resistant low bending loss and large mode area single-mode fiber with low NA[J]. Optical Fiber Technology, 51, 101-106(2019).

[11] WANG Jianming. Research on the key technology and output stability of high power single-mode fiber laser[D](2017).

[12] XIA Haiping, ZHANG Jianli, WANG Jinhao et al. Optical spectroscopy of Er3+, Er3+/Yb3+ Co-doped Bi2O3-GeO2-B2O3-ZnO glasses[J]. Journal of the Chinese Rare Earth Society, 23, 524-528(2005).

[13] LI Chaoyang, YU Li, ZHANG Xiaoguang et al. Design of photonic crystal fiber using full vector finite element method[J]. Journal of Optoelectronics Laser, 18, 30-35(2007).

[14] DU Hailong, ZHENG Yi, PANG Xuemin. Design of photonic crystal fibers with low loss broadband near-zero dispersion and high nonlinearity[J]. High Power Laser and Particle Beams, 33, 28-34(2021).

[15] TAN Fang, YANG Qiang, HUO Muyi et al. Structural design and properties study of rectangular lattice high polarization low-loss-Bi-Ge-Ga photonic crystal fiber[J]. High Power Laser and Particle Beams, 33, 10-17(2021).

[16] LYU Huanzhu, YU Mingxin, ZHONG Wenbo et al. Research and design of large-mode area low loss photonic crystal fiber[J]. Laser Technology, 45, 196-201(2021).

[17] TAN Fang, XU Pengfei, ZHOU Dechun et al. Research on properties of highly nonlinear Bi2O3-GeO2-Ga2O3 photonic crystal fiber[J]. Laser & Optoelectronics Progress, 59, 0306003(2022).

[18] SUN W B, YANG X F, ZHANG Z et al. Optical damage resistant Ti-diffused Zr/Er-codoped lithium niobate strip waveguide for high-power 980 nm pumping[J]. Optics Express, 25, 8653(2017).

[19] LIU Peng, ZHU Zhen, CHEN Kang et al. High reliable Al-free 808 nm semiconductor laser diode pump source[J]. Journal of Synthetic Crystals, 50, 757-761(2021).

[20] SONG Xiaoshu. Manufacturers of vertical cavity surface emitting lasers storm 1 300 nm telecom fortress[J]. Optics, Mechanics & Electronics Information, 19, 41-42(2002).