E-mail Alert
RSS2020 Vol. 47, No. 4
Cover Story：Zhang L H, Shen F, Lan B. Characteristic analysis of orbital angular momentum of vortex beam propagating in atmospheric turbulent[J]. Opto-Electronic Engineering, 2020, 47(4): 190272
All the beams used in space optical communication are inevitably disturbed by atmospheric turbulence, as is the vortex beam. The most representative effect is the mode crosstalk of vortex beam. Thus, in order to provide a theoretical basis for the future development of space optical communication systems based on vortex beams, the atmospheric transmission characteristics of vortex beam should be characterized systematically. The research team of Shen Feng Researcher from Institute of Optics and Electronics CAS has proposed an analytical theoretical model based on the topological charge detection probability to study the atmospheric transmission characteristics of vortex beams. Take the typical vortex beam: Laguerre-Gaussian vortex as an example, by studying the variation of the rotation coherence function of the vortex beam during the transmission in atmospheric turbulence, the crosstalk between the orbital angular momentum modes of the vortex beam transmitted in atmospheric turbulence has been summarized.
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Prof. Xiangang Luo
