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Proceedings Paper

Characterisation Of Avalanche Photodiodes For LIDAR Atmospheric Return Signal Detectors
Author(s): C. W. Antill; R. M. Holloway
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Paper Abstract

NASA Langley Research Center has initiated several programs to develop space flight and aircraft LIDAR instruments. These instruments will be used for scientific investigation of aerosols and trace gas constituents in the troposphere and stratosphere. Extensive analysis shows that avalanche photodiodes have definite advantages over photomultiplier tubes for given laser wavelengths and return signal amplitudes. For this class of signal returns, avalanche photodiodes have improved quantum efficiency, signal to noise ratio, linearity and overload recovery. These features help minimize the systematic errors caused by the detector. Laboratory measurements of the avalanche photodiodes were conducted to collect data for system performance analysis. This data was used to maximize system signal to noise ratios, and provided electronic and other useful design parameters. Tests were conducted on approximately ten avalanche photodiodes to characterize noise, dark currents, overload, and gain versus bias relationships. This paper presents the results and conclusions of the above analysis.

Paper Details

Date Published: 7 December 1988
PDF: 7 pages
Proc. SPIE 0972, Infrared Technology XIV, (7 December 1988); doi: 10.1117/12.948285
Show Author Affiliations
C. W. Antill, National Aeronautics and Space Aministration (United States)
R. M. Holloway, National Aeronautics and Space Aministration (United States)

Published in SPIE Proceedings Vol. 0972:
Infrared Technology XIV
Irving J. Spiro, Editor(s)

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