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Proceedings Paper

Coherent optical focal plane array receiver for PPM signals: investigation and applications
Author(s): M. Muñoz Fernández; K. M. Cheung; R. Mukai
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Paper Abstract

The performance of a coherent optical focal plane array receiver for PPM signals under atmospheric turbulence is investigated and applications of this system are addressed. The experimental demonstration of this project has already been explained in previous publications. This article shows a more exhaustive analysis of the expressions needed to obtain the Bit Error Rate (BER) for the real system under study in the laboratory, specifically an approach using the Saddle-Point approximation of the Marcum-Q function. Selected experimental results of this system are described and compared with theoretical BER expressions, and array combining gains are presented. Receiver sensitivity in terms of photons per bit (PPB) is examined; BER results are shown as a function of signal to noise ratios (SNR) as well as a function of photons per bit.

Paper Details

Date Published: 1 September 2006
PDF: 11 pages
Proc. SPIE 6304, Free-Space Laser Communications VI, 63040I (1 September 2006);
Show Author Affiliations
M. Muñoz Fernández, California Institute of Technology (United States)
Jet Propulsion Lab. (United States)
K. M. Cheung, Jet Propulsion Lab. (United States)
R. Mukai, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 6304:
Free-Space Laser Communications VI
Arun K. Majumdar; Christopher C. Davis, Editor(s)

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