[3] Lou Q H, Zhou J, Zhang H B et al. Recent progress of large core fiber lasers (invited paper)[J]. Chinese Journal of Lasers, 37, 2235-2241(2010).
[4] Zhang Y Y. Modal decomposition technology based on correlation filter of eigenmode superposition for optical fiber laser beam[D](2021).
[5] Zhang N. Study on mode and propacteristics of laser in annular medium[D](2020).
[8] Fu G W, Liu C, Wang M M et al. Tapered multimode fiber temperature sensor based on surface graphene modification[J]. Acta Optica Sinica, 41, 0906002(2021).
[9] Lu Y, Jiang Z F, Liu W G et al. Laser mode control in fiber with core diameter of 30 μm based on 3×1 photonic lantern[J]. Acta Optica Sinica, 41, 1736001(2021).
[10] Liu J Z, Yan T Y, Kang X F et al. Influence of laser power on fracture properties of TC4 titanium alloy T-joint manufactured using dual-laser-beam bilateral synchronous welding[J]. Chinese Journal of Lasers, 48, 1802007(2021).
[11] Zhu S J, Zhang Z Y, Chu S L et al. Research and application of massive micropores water-assisted picosecond laser processing technology[J]. Chinese Journal of Lasers, 47, 0302002(2020).
[12] Feng G Y, Zhou T H, Gao C Q[M]. Laser mode field and beam quality characterization(2016).
[14] Li Y Y, Liu L S, Wang T F et al. Analysis of laser beam propagation through optical system using Collins formula and Zernike polynomials[J]. Infrared and Laser Engineering, 44, 857-862(2015).
[15] Lü B D[M]. Laser optics: beam characterization, propagation and transformation, resonator technology and physics(2003).