Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Beam propagation factor of cosh-Gaussian array beams propagating through atmospheric turbulence

Liu Fei Ji Xiao-Ling

Beam propagation factor of cosh-Gaussian array beams propagating through atmospheric turbulence

Liu Fei, Ji Xiao-Ling
PDF
Get Citation
Metrics
  • Abstract views:  3427
  • PDF Downloads:  656
  • Cited By: 0
Publishing process
  • Received Date:  02 January 2010
  • Accepted Date:  10 May 2010
  • Published Online:  15 January 2011

Beam propagation factor of cosh-Gaussian array beams propagating through atmospheric turbulence

  • 1. Department of Physics, Sichuan Normal University, Chengdu 610068, China

Abstract: The analytical formula for the beam propagation factor ( M 2-factor) of cosh-Gaussian (ChG) array beams propagating through atmospheric turbulence is derived, and the influence of turbulence on the M 2-factor is studied by using the relative M 2-factor. It is shown that the M 2-factor is not a propagation invariant in turbulence, and the turbulence results in an increase of the M 2-factor. For the incoherent combination, the M 2-factor of ChG array beams increases with increasing propagation distance, beam parameter, relative beam separation distance and beam number. For the coherent combination, the M 2-factor of ChG array beams increases with oscillatory behavior as the beam parameter or the relative beam separation distance increases. For the coherent combination the M 2-factor is always smaller than that for the incoherent combination. However, for the incoherent combination the M 2-factor is always less sensitive to turbulence than that for the coherent combination. In particular, the influence of turbulence on the M 2-factor can be reduced by a suitable choice of the relative beam separation distance. With increasing beam number, the M 2-factor becomes more sensitive to turbulence for the coherent combination, while for the incoherent combination the M 2-factor becomes less sensitive to turbulence.

Reference (23)

Catalog

    /

    返回文章
    返回