Propagation of partially coherent radiation through atmospheric turbulence

Y. Baykal; M. A. Plonus; S. J. Wang

doi:10.1117/12.934060

Propagation of partially coherent radiation through atmospheric turbulence

Y. Baykal^*, M. A. Plonus, S. J. Wang

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The average received intensity and the intensity fluctuations in weakly turbulent media are derived for finite-sized sources of arbitrary degree of coherence (both spatial and temporal). Spatial partial coherence is modelled by random shifts and tilts of the source phase. With this simple model of source coherence, we are able to obtain the correct average intensity when the source is coherent, partially coherent and incoherent. The scintillation index as measured by a slow detector is formulated by introducing the temporal as well as spatial effects in the source coherence. Transmitter and frequency averaging effects are shown as special cases of our results.

Original language	English (US)
Pages (from-to)	106-115
Number of pages	10
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	358
DOIs	https://doi.org/10.1117/12.934060
State	Published - Dec 7 1982

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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AU - Plonus, M. A.

AU - Wang, S. J.

PY - 1982/12/7

Y1 - 1982/12/7

N2 - The average received intensity and the intensity fluctuations in weakly turbulent media are derived for finite-sized sources of arbitrary degree of coherence (both spatial and temporal). Spatial partial coherence is modelled by random shifts and tilts of the source phase. With this simple model of source coherence, we are able to obtain the correct average intensity when the source is coherent, partially coherent and incoherent. The scintillation index as measured by a slow detector is formulated by introducing the temporal as well as spatial effects in the source coherence. Transmitter and frequency averaging effects are shown as special cases of our results.

AB - The average received intensity and the intensity fluctuations in weakly turbulent media are derived for finite-sized sources of arbitrary degree of coherence (both spatial and temporal). Spatial partial coherence is modelled by random shifts and tilts of the source phase. With this simple model of source coherence, we are able to obtain the correct average intensity when the source is coherent, partially coherent and incoherent. The scintillation index as measured by a slow detector is formulated by introducing the temporal as well as spatial effects in the source coherence. Transmitter and frequency averaging effects are shown as special cases of our results.

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JF - Proceedings of SPIE - The International Society for Optical Engineering

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Propagation of partially coherent radiation through atmospheric turbulence

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