Direct-detection wind lidar operating with a multimode laser

Didier Bruneau 1 Frédéric Blouzon 2 Joseph Spatazza 2 Franck Montmessin 3 Jacques Pelon 1 Benoît Faure 4
1 TROPO - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
3 IMPEC - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Abstract : A direct-detection wind lidar that operates with a multimode laser has been developed and tested. The instrument exploits the light backscattered by particles using a Mach-Zehnder interferometer with an optical path difference matched to the free spectral range of the laser longitudinal modes. In addition to requiring no monomodal emission, the system requires no frequency locking between the interferometer and the laser. We report laboratory and atmospheric measurements that show that the lidar is capable of measuring the radial wind velocity with a systematic error lower than 1 ms(-1) and a random error lower than 2 ms(-1) for a signal-to-noise ratio of 100. The development is motivated by the possibility to probe wind with a compact system in planetary atmospheres.
Type de document :
Article dans une revue
Applied optics, Optical Society of America, 2013, 52 (20), pp.4941-4949. 〈10.1364/AO.52.004941〉
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https://hal.archives-ouvertes.fr/hal-00850024
Contributeur : Catherine Cardon <>
Soumis le : vendredi 2 août 2013 - 12:49:26
Dernière modification le : mercredi 19 septembre 2018 - 01:32:17

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Didier Bruneau, Frédéric Blouzon, Joseph Spatazza, Franck Montmessin, Jacques Pelon, et al.. Direct-detection wind lidar operating with a multimode laser. Applied optics, Optical Society of America, 2013, 52 (20), pp.4941-4949. 〈10.1364/AO.52.004941〉. 〈hal-00850024〉

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