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Proceedings Paper

Phase diffuser at the transmitter for lasercom link: effect of partially coherent beam on the bit-error rate
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Paper Abstract

By using a complex phase screen model for a diffuser located at the transmitter, analytic expressions are developed for the scintillation index of a lowest order Gaussian-beam wave in the pupil plane of the receiver in weak and strong atmospheric conditions. The effect of partial coherence on the scintillation index is analyzed as a function of the propagation distance and the correlation length of the diffuser. The reduction in the scintillation level is shown under all atmospheric conditions. The signal to noise ratio and the bit error rates are discussed.

Paper Details

Date Published: 30 April 2003
PDF: 8 pages
Proc. SPIE 4976, Atmospheric Propagation, (30 April 2003); doi: 10.1117/12.473178
Show Author Affiliations
Olga Korotkova, Univ. of Central Florida (United States)
Larry C. Andrews, Univ. of Central Florida (United States)
Ronald L. Phillips, Florida Space Institute (United States)


Published in SPIE Proceedings Vol. 4976:
Atmospheric Propagation
Cynthia Y. Young; John S. Stryjewski, Editor(s)

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