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  • Received: Aug. 10, 2020

    Accepted: --

    Posted: Jan. 14, 2021

    Published Online: Jan. 14, 2021

    The Author Email: Lin Shuqin (Lsqsdnu@163.com), Cai Yangjian (yangjiancai@suda.edu.cn), Yu Jiayi (jiayiyu0528@sdnu.edu.cn)

    DOI: 10.3788/IRLA20201049

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    Shuqin Lin, Jiqian Zhang, Xinlei Zhu, Fei Wang, Yangjian Cai, Jiayi Yu. Coupling efficiency of non-uniformly correlated beams into a single-mode fiber in turbulence (Invited)[J]. Infrared and Laser Engineering, 2020, 49(12): 20201049

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Infrared and Laser Engineering, Vol. 49, Issue 12, 20201049 (2020)

Coupling efficiency of non-uniformly correlated beams into a single-mode fiber in turbulence (Invited)

Lin Shuqin1,2, Zhang Jiqian3, Zhu Xinlei4, Wang Fei4, Cai Yangjian1,2,4,*, and Yu Jiayi1,2,*

Author Affiliations

  • 1School of Physics and Electronics, Shandong Normal University, Jinan 250358, China
  • 2Shandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Device, Jinan 250358, China
  • 3College of Physics and Electronic Information, Anhui Normal University, Wuhu 241000, China
  • 4School of Physical Science and Technology, Soochow University, Suzhou 215006, China

Abstract

The coupling efficiency of non-uniformly correlated beams through atmospheric turbulence was studied. The results show that the fiber coupling efficiency of such beams is higher than that of the traditional Gaussian Schell-model beam; and the regulation of the coherence length of such beams can improve the fiber coupling efficiency; for different transmission distances, the optimization of the coupling efficiency can be achieved by adjusting the coherence length of such beams. Moreover, the effect of the light source parameters: beam waist and wavelength; coupling lens parameters: received aperture and focal length; turbulence intensity on the coupling efficiency of optical fiber was also discussed. The results show that the application of optical field correlation structure manipulation technology in improving the coupling efficiency of optical fiber has important value in the field of free space optical communication.

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