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Proceedings Paper

Carrier-to-noise ratio for an equal-gain coherent laser radar receiver array system: theory and experiment
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Paper Abstract

In this paper, a theoretical comparison is made of the mean carrier-to-noise ratio (CNR) for a coherent (heterodyne detection) equal gain (EG) optical array receiver system with that predicted by a conventional single-aperture monolithic coherent detector system. Our analysis shows that the mean CNR for an EG array receiver system improves significantly over that of a single aperture system. Experimental data taken from a recent outdoor experiment over a range up to 1 km between target and transceiver are also presented and compared with the theory for a particular eight-element EG system developed at the University of Central Florida. Optical signals received by the EG receiver array are launched into eight single mode optical fibers. Phase compensation between the individual receivers is accomplished by wrapping the fiber around PZT cylinders that are controlled by phase compensating electronics.

Paper Details

Date Published: 15 January 1998
PDF: 9 pages
Proc. SPIE 3219, Optics in Atmospheric Propagation and Adaptive Systems II, (15 January 1998); doi: 10.1117/12.298052
Show Author Affiliations
Larry C. Andrews, Univ. of Central Florida and CREOL/Univ. of Central Florida (United States)
Deborah E. Kelly, Univ. of Central Florida and CREOL/Univ. of Central Florida (United States)
Ronald L. Phillips, Univ. of Central Florida and CREOL/Univ. of Central Florida (United States)
Arthur Robert Weeks, Univ. of Central Florida and CREOL/Univ. of Central Florida (United States)
James E. Harvey, Univ. of Central Florida and CREOL/Univ. of Central Florida (United States)
Jing Xu, Univ. of Central Florida and CREOL/Univ. of Central Florida (United States)
Chie L. Gagge, Univ. of Central Florida and CREOL/Univ. of Central Florida (United States)
Ali Notash, Univ. of Central Florida and CREOL/Univ. of Central Florida (United States)
Giovanni Luvera, Univ. of Central Florida and CREOL/Univ. of Central Florida (United States)
R. Glenn Sellar, Univ. of Central Florida and CREOL/Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 3219:
Optics in Atmospheric Propagation and Adaptive Systems II
Anton Kohnle; Adam D. Devir, Editor(s)

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