Experimental research on transmission performance on OAM beam and Gaussian beam in atmospheric turbulence channel

被引：0
作者：
Yu C. [1 ,2 ]
Wang T. [1 ,2 ]
Zhang Y. [1 ,2 ]
Lin P. [1 ,2 ]
Zheng C. [1 ,2 ]
Ma W. [1 ,2 ]
机构：
[1] National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun
[2] College of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2021年 / 50卷 / 08期
关键词：
Atmospheric turbulence; Free space optical communication; Orbital angular momentum;
D O I：
10.3788/IRLA20200400
中图分类号：
学科分类号：
摘要：
The transmission performance of orbital angular momentum(OAM) beam and Gaussian beam in atmospheric turbulent channel was studied and compared experimentally. The beam spreading, pointing error, power jitter and bit error rate of the two beams were measured respectively, the OAM beam loaded with modulated signals and the Gaussian beam were as carrier. The experimental results show that in the atmospheric turbulence channel, compared with Gaussian beam, beam spreading ratio of the OAM beams reduces by 10.5%, variance of power jitter falls 0.13, dispersion circle diameter of the pointing error decreases by 30.4%, and more focused on the distribution of the center of the beam axis. The lowest detection sensitivity of the OAM beam carrier system reaches −28.97 dBm, which improved 2.5 dB compared with that of Gaussian beam. The experimental results verify that OAM beam is less affected by turbulence than Gaussian beam in atmospheric turbulence channel, and the deterioration of beam quality of OAM beam is much less than Gaussian beam with the increase of turbulence intensity. The results of the experiment provide a reference for the development and application of free space laser communication in atmospheric turbulent channel. © 2021, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
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  • [1] Xia Haojie, Gu Ronghui, Pan Chengliang, Et al., Signal processing method for displacement measurement interferometry using vortex beams, Optics and Precision Engineering, 28, 9, pp. 1905-1912, (2020)
  • [2] Yuan Hongwei, Rao Shenglong, Wu Dong, Et al., Fabrication and rotation driving of movable microstructures based on femtosecond laser, Optics and Precision Engineering, 28, 3, pp. 584-590, (2020)
  • [3] Lu Tengfei, Zhang Kaining, Wu Zhijun, Et al., Propagation properties of elliptical vortex beams in turbulent ocean, Chinese Optics, 13, 2, pp. 323-332, (2020)
  • [4] Song Dongsheng, Zheng Yuanlin, Liu Hu, Et al., Eigen generalized Jones matrix method, Chinese Optics, 13, 3, pp. 637-645, (2020)
  • [5] Wang A, Zhu L, Wang L, Et al., Directly using 8.8 km conventional multi-mode fiber for 6-mode orbital angular momentum multiplexing transmission, Optics Express, 26, 8, pp. 10038-10047, (2018)
  • [6] Ding M, Chen Y, Zhao Y, Et al., Propagation and orbital angular momentum of vortex beams generated from a spiral phase plate-fiber, Laser Physics Letters, 16, 3, (2019)
  • [7] Bai Xiuli, Chen Heming, Zhang Lingfei, Circular photonic crystal fiber supporting orbital angular momentum modes transmission, Infrared and Laser Engineering, 48, 2, (2019)
  • [8] Wang J, Yang J Y, Fazal I M, Et al., Terabit free-space data transmission employing orbital angular momentum multiplexing, Nature Photonics, 6, 7, pp. 488-496, (2012)
  • [9] Qu Z, Djordjevic I B., 500Gb/s free-space optical transmission over strong atmospheric turbulence channels, Optics Letters, 41, 14, (2016)
  • [10] Peng J, Zhang L, Zhang K, Et al., Channel capacity of OAM based FSO communication systems with partially coherent Bessel-Gaussian beams in anisotropic turbulence, Optics Communications, 418, pp. 32-36, (2018)
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