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高斯涡旋光束在大气湍流传输中的特性研究

娄岩 陈纯毅 赵义武 陶宗慧

娄岩, 陈纯毅, 赵义武, 陶宗慧. 高斯涡旋光束在大气湍流传输中的特性研究[J]. 中国光学, 2017, 10(6): 768-776. doi: 10.3788/CO.20171006.0768
引用本文: 娄岩, 陈纯毅, 赵义武, 陶宗慧. 高斯涡旋光束在大气湍流传输中的特性研究[J]. 中国光学, 2017, 10(6): 768-776. doi: 10.3788/CO.20171006.0768
LOU Yan, CHEN Chun-yi, ZHAO Yi-wu, TAO Zong-hui. Characteristics of Gaussian vortex beam in atmospheric turbulence transmission[J]. Chinese Optics, 2017, 10(6): 768-776. doi: 10.3788/CO.20171006.0768
Citation: LOU Yan, CHEN Chun-yi, ZHAO Yi-wu, TAO Zong-hui. Characteristics of Gaussian vortex beam in atmospheric turbulence transmission[J]. Chinese Optics, 2017, 10(6): 768-776. doi: 10.3788/CO.20171006.0768

高斯涡旋光束在大气湍流传输中的特性研究

doi: 10.3788/CO.20171006.0768
基金项目: 

吉林省科技发展计划项目 20140520115JH

详细信息
    作者简介:

    娄岩(1981-), 女, 吉林长春人, 博士, 助理研究员, 2008年于西安工业大学获得硕士学位, 2012年于长春理工大学获得博士学位, 2016年美国宾夕法尼亚州立大学做访问学者, 主要从事自由空间光通信计算机系统仿真机方面的研究

    通讯作者:

    娄岩, E-mail:louyan2008@126.com

  • 中图分类号: O43

Characteristics of Gaussian vortex beam in atmospheric turbulence transmission

Funds: 

Jilin Provincial S & T Development Project of China 20140520115JH

More Information
  • 摘要: 为了研究大气湍流对高斯涡旋光束传递信息的影响,理论分析了经过大气湍流的高斯涡旋光束轨道角动量(OAM)模式的径向平均功率和归一化平均功率分布、固有模式指数、初始光束半径和湍流强度;采用纯相位扰动逼近的有效性,数值模拟高斯涡旋光束在传输中的OAM模式径向平均功率分布的变化。建立传输模型并进行外场激光大气传输实验,对比分析了模拟和实测的OAM归一化平均功率分布,结果表明在弱湍流条件下,OAM模式的径向平均功率随着接收器孔径尺寸的增加而变化,逐渐趋于稳定值。对于一般常用的接收孔径,在强湍流或较小的初始光束半径条件下对OAM模式干扰十分严重。验证了用数值方法模拟OAM在湍流介质中的模式变化过程的可靠性。
  • 图  1  无大气湍流条件下传输中的高斯涡旋光束固有OAM模式径向功率分布

    Figure  1.  Radial power distributions of natural OAM mode of Gaussian vortex beams in transmission without atmospheric turbulence

    图  2  qc=5时,弱湍流中传输的高斯涡旋光束的OAM模式的径向平均功率

    Figure  2.  Radial mean power of OAM mode of Gaussian vortex beam transmitting in weak turbulence while qc=5

    图  3  qc=1.5时,强湍流中传输的高斯涡旋光束的OAM模式径向平均功率分布

    Figure  3.  Radial mean power distributions of OAM mode of Gaussian vortex beam transmitting in strong turbulence while qc=1.5

    图  4  高斯涡旋光束在大气湍流传输中的OAM模式传输实验

    Figure  4.  OAM mode transmission experiment of Gaussian vortex beam transmitting in atmospheric turbulence

    图  5  弱湍流条件下,理论模拟值与实测高斯涡旋光束的OAM模式归一化平均功率分布对比图

    Figure  5.  Comparison of normalized average power distributions of OAM mode between theoretical simulation value and measured Gaussian vortex beam under the condition of weak turbulence

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出版历程
  • 收稿日期:  2017-09-11
  • 修回日期:  2017-11-13
  • 刊出日期:  2017-12-01

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