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Beam Propagation Through Atmospheric Turbulence Using an Altitude-Dependent Structure Profile with Non-Uniformly Distributed Phase ScreensFor free-space optical communication systems, numerical wave optics simulations provide a useful technique for modeling turbulence-induced beam degradation when the analytical theory is insufficient for characterizing the atmospheric channel. Motivated by such applications we use a split-step method modeling the turbulence as a series of random phase screens using the Hufnagel-Valley turbulence profile. We employ a space-to-ground case study to examine the irradiance and phase statistics for uniformly and non-uniformly located screens and find better agreement with theory using a non-uniform discretization minimizing the contribution of each screen to the total scintillation. In this poster, we summarize the method and the results of the case study including a comparison to layered models used in astronomical imaging applications.
Document ID
20200001013
Document Type
Poster
Authors
Chahine, Yousef K.
(NASA Glenn Research Center Cleveland, OH, United States)
Tedder, Sarah A.
(NASA Glenn Research Center Cleveland, OH, United States)
Vyhnalek, Brian E.
(NASA Glenn Research Center Cleveland, OH, United States)
Wroblewski, Adam C.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
February 20, 2020
Publication Date
February 1, 2020
Subject Category
Optics
Report/Patent Number
GRC-E-DAA-TN77624
Meeting Information
Meeting: SPIE Photonics West
Location: San Francisco, CA
Country: United States
Start Date: February 1, 2020
End Date: February 6, 2020
Sponsors: International Society for Optical Engineering
Funding Number(s)
WBS: 405034.04.01.14.01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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