[1] Hanson F, Radic S. High bandwidth underwater optical communication[J]. Applied Optics, 47, 277-283(2008).
[2] Wu Q, Li H Y, Ding W et al. Disturbance orbital angular momentum spectrum recognition based on ResNeXt network[J]. Chinese Journal of Lasers, 48, 1706003(2021).
[3] Guo D F, Zhang P, Gong X Y et al. Design and simulation analysis of laguerre Gaussian mode demultiplexing hybrid based on multi-plane light conversion[J]. Chinese Journal of Lasers, 49, 0906002(2022).
[4] Allen L, Beijersbergen M W, Spreeuw R J et al. Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes[J]. Physical Review A, 45, 8185-8189(1992).
[5] Baghdady J, Miller K, Morgan K et al. Multi-gigabit/s underwater optical communication link using orbital angular momentum multiplexing[J]. Optics Express, 24, 9794-9805(2016).
[6] Ren Y X, Li L, Wang Z et al. Orbital angular momentum-based space division multiplexing for high-capacity underwater optical communications[J]. Scientific Reports, 6, 33306(2016).
[7] Anguita J A, Neifeld M A, Vasic B V. Turbulence-induced channel crosstalk in an orbital angular momentum-multiplexed free-space optical link[J]. Applied Optics, 47, 2414-2429(2008).
[8] Yin X L, Sun Z W, Cui X Z et al. Performance of oceanic wireless optical communication systems based on orbital angular momentum multiplexing with spatial diversity[J]. Acta Photonica Sinica, 47, 1106003(2018).
[9] Yin X L, Zheng T, Sun Z W et al. Simulation of transmission characteristics of oceanic wireless optical communication systems based on orbital angular momentum multiplexing with space-time coding[J]. Journal on Communications, 41, 110-117(2020).
[10] Wang M J, Zhang J L, Wang Z Y et al. Scattering of Laguerre-Gaussian vortex beams by underwater suspended spherical algal particle swarms[J]. Acta Optica Sinica, 42, 1829001(2022).
[11] Huang H, Xie G D, Ren Y et al. 4×4 MIMO equalization to mitigate crosstalk degradation in a four-channel free-space orbital-angular-momentum-multiplexed system using heterodyne detection[C](2013).
[12] Xu Z D, Gui C C, Li S H et al. Fractional orbital angular momentum (OAM) free-space optical communications with atmospheric turbulence assisted by MIMO equalization[C], 13-17(2014).
[13] Zhao J, Gao Z M[M]. Research on simulation application of blind equalization technology in communication system, 1-2(2022).
[14] Willner A E, Zhao Z, Ren Y X et al. Underwater optical communications using orbital angular momentum-based spatial division multiplexing[J]. Optics Communications, 408, 21-25(2018).
[15] Yang T X, Zhao S M. Random phase screen model of ocean turbulence[J]. Acta Optica Sinica, 37, 1201001(2017).
[16] Nikishov V V, Nikishov V I. Spectrum of turbulent fluctuations of the sea-water refraction index[J]. International Journal of Fluid Mechanics Research, 27, 82-98(2000).
[17] Wang J, Yang J Y, Fazal I M et al. Terabit free-space data transmission employing orbital angular momentum multiplexing[J]. Nature Photonics, 6, 488-496(2012).
[18] Zou L, Wang N, Zhao S M et al. Turbulence mitigation scheme based on multiple-user detection in an orbital-angular-momentum multiplexed system[J]. Chinese Physics B, 25, 114215(2016).
[19] Zhang Y, Wang P, Guo L X et al. Performance analysis of an OAM multiplexing-based MIMO FSO system over atmospheric turbulence using space-time coding with channel estimation[J]. Optics Express, 25, 19995-20011(2017).
[20] Zou L, Wang L, Xing C et al. Turbulence mitigation with MIMO equalization for orbital angular momentum multiplexing communication[C](2016).
[21] Ke X Z, Li J. Using MCMA-MUK algorithm to suppress crosstalk in orbital angular momentum multiplexing communication system[J]. Optical Review, 28, 331-341(2021).
[22] Zhang L Y[M]. Theory, algorithm and application of neural blind equalization, 22-23(2013).
[23] Wang H S[M]. Artificial intelligence and its application, 14(2006).
[24] Cadzow J A. Blind deconvolution via cumulant extrema[J]. IEEE Signal Processing Magazine, 13, 24-42(1996).
[25] Zhang X Q, Bai Y, Zhang B B et al. A variable step-size blind equalization algorithm based on the fuzzy neural network controller[J]. Computer Engineering and Applications, 42, 44-46, 106(2006).
[26] Yin X L, Sang H Q, Cui X Z et al. Offset tolerance of an orbital angular momentum optical communication system with angular deflection[J]. Optics Communications, 393, 34-39(2017).
[27] Cheng M J, Guo L X, Li J T et al. Propagation of an optical vortex carried by a partially coherent Laguerre-Gaussian beam in turbulent ocean[J]. Applied Optics, 55, 4642-4648(2016).
[28] Cheng M J, Guo L X, Li J T et al. Channel capacity of the OAM-based free-space optical communication links with Bessel-Gauss beams in turbulent ocean[J]. IEEE Photonics Journal, 8, 7901411(2016).
