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Optical Engineering

Sensitivity comparison of ladar receivers designed to detect glint targets
Author(s): C. D. Brewer; Bradley D. Duncan; Edward A. Watson
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Paper Abstract

We present four receiver designs for a ladar system, based on an optical parametric amplifier, that is designed to collect returns from glint targets. After coupling the return energy into periodically poled lithium niobate, the target backscatter is detected with either an infrared camera or a CCD array. Assuming reasonable detector and system characteristics, the sensitivity of each design is then evaluated by setting the receiver SNR detection threshold equal to one and using the minimum transmitted energy as the figure of merit. Through numerical analysis, we show that an upconversion receiver followed by a visible CCD array offers the best trade-off between sensitivity and practical design for airborne ladar applications.

Paper Details

Date Published: 1 July 2002
PDF: 9 pages
Opt. Eng. 41(7) doi: 10.1117/1.1479709
Published in: Optical Engineering Volume 41, Issue 7
Show Author Affiliations
C. D. Brewer, Univ. of Dayton (United States)
Bradley D. Duncan, Univ. of Dayton (United States)
Edward A. Watson, Air Force Research Lab. (United States)

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