[1] J Zhang, Z Lin, J Liu, et al. SDM transmission of orbital angular momentum mode channels over a multi-ring-core fibre. Nanophotonics, 11, 873-884(2021).

[2] Y Shi, D R Blackman, P Zhu, et al. Electron pulse train accelerated by a linearly polarized Laguerre–Gaussian laser beam. High Power Laser Science and Engineering, 10, e45(2022).

[3] Y Yang, Y Ren, M Chen, et al. Optical trapping with structured light: A review. Advanced Photonics, 3, 034001(2021).

[4] K I Willig, J Keller, M Bossi. STED microscopy resolves nanoparticle assemblies. New Journal of Physics, 8, 106(2006).

[5] H Lv, Y Bai, Z Ye, . Generation of optical vortex beams via metasurfaces(invited). Infrared and Laser Engineering, 50, 20210283(2021).

[6] W Ma, H Lu, J Wang, . Vortex beam generation based on spatial light modulator and deep learning. Acta Optica Sinica, 41, 1107001(2021).

[7] M Fridman, M Nixon, M Dubinskiy, et al. Fiber amplification of radially and azimuthally polarized laser light. Physics, 35, 1332-1334(2010).

[8] P Gregg, M Mirhosseini, A Rubano, et al. Q-plates as higher order polarization controllers for orbital angular momentum modes of fiber. Optics Letters, 40, 1729-1732(2015).

[9] X Ma, J Ye, Y Zhang, et al. Vortex random fiber laser with controllable orbital angular momentum mode. Photonics Research, 9, 266-271(2021).

[10] B Sun, A Wang, L Xu, et al. Low-threshold single-wavelength all-fiber laser generating cylindrical vector beams using a few-mode fiber Bragg grating. Optics Letters, 37, 464-466(2012).

[11] Y Zhao, T Wang, C Mou, et al. All-fiber vortex laser generated with few-mode long-period gratings. IEEE Photonics Technology Letters, 30, 752-755(2018).

[12] Y Lu, W Liu, Z Chen, et al. Spatial mode control based on photonic lanterns. Optics Express, 29, 41788-41797(2021).

[13] T Wang, F Wang, F Shi, et al. Generation of femtosecond optical vortex beams in all-fiber mode-locked fiber laser using mode selective coupler. Journal of Lightwave Technology, 35, 2161-2166(2017).

[14] H Wu, J Xu, L Huang, et al. High-power fiber laser with real-time mode switchability. Chinese Optics Letters, 20, 021402(2022).

[15] J Lu, F Shi, L Meng, et al. Real-time observation of vortex mode switching in a narrow-linewidth mode-locked fiber laser. Photonics Research, 8, 1203-1212(2020).

[16] W Zhang, K Wei, L Huang, et al. Optical vortex generation with wavelength tunability based on an acoustically-induced fiber grating. Optics Express, 24, 19278-19285(2016).

[17] W Zhang, L Huang, K Wei, et al. High-order optical vortex generation in a few-mode fiber via cascaded acoustically driven vector mode conversion. Optics Letters, 41, 5082-5085(2016).

[18] X Zhao, Y Liu, Z Liu, et al. Wavelength tunable OAM mode converters based on chiral long-period gratings. IEEE Photonics Technology Letters, 32, 1519-1522(2020).

[19] H Hu, Z Chen, Qian Cao, et al. Wavelength-tunable and OAM-switchable ultrafast fiber laser enabled by intracavity polarization control. IEEE Photonics Journal, 15, 1-4(2023).

[20] L Gui, C Wang, F Ding, et al. 60 nm span wavelength-tunable vortex fiber laser with intracavity plasmon metasurfaces. ACS Photonics, 10, 623-631(2023).

[21] P Zhou, T Yao, C Fan, . 50^th anniversary of Raman fiber laser: History, progress and prospect (Invited). Infrared and Laser Engineering, 51, 20220015(2022).

[22] N B Terry, T G Alley, T H Russell. An explanation of SRS beam cleanup in graded-index fibers and the absence of SRS beam cleanup in step-index fibers. Optics Express, 15, 17509-17519(2007).

[23] J N Blake, B Y Kim, H E Engan, et al. Analysis of intermodal coupling in a two-mode fiber with periodic microbends. Optics Letters, 12, 281-283(1987).

[24] A M Vengsarkar, J R Pedrazzani, J B Judkins, et al. Long-period fiber-grating-based gain equalizers. Optics Letters, 21, 336-338(1996).

[25] B Lan, C Liu, D Rui, et al. The topological charge measurement of the vortex beam based on dislocation self-reference interferometry. Physica Scripta, 94, 055502(2019).