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Proceedings Paper

All-fiber 1.5-um CW coherent laser anemometer for in-flight measurements
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Paper Abstract

In order to optimize their flight conditions, airborne platforms need to know precisely their true airspeed. In helicopters, measuring low air speeds is a severe issue because of the rotor flow. Optical air data sensors are therefore a good alternative to classical pneumatic probes. ONERA is involved for many years in simulation and design of coherent lidar and focuses its last research on eye-safe solid state lidars. This paper describes the study of performance of a reliable compact airborne system based on a 1.5 μm Erbium fiber laser and architecture. The average heterodyne current power is examined for the case of negligible turbulence and truncation effect. The spatial resolution of the measurement is deduced and its behavior versus transmitter beam parameters discussed.

Paper Details

Date Published: 21 August 2003
PDF: 8 pages
Proc. SPIE 5086, Laser Radar Technology and Applications VIII, (21 August 2003); doi: 10.1117/12.503135
Show Author Affiliations
Beatrice Augere, Office National d'Etudes et de Recherche Aerospatiales (France)
Jean-Pierre Cariou, Office National d'Etudes et de Recherche Aerospatiales (France)

Published in SPIE Proceedings Vol. 5086:
Laser Radar Technology and Applications VIII
Gary W. Kamerman, Editor(s)

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