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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 12 — Apr. 20, 2009
  • pp: 2321–2332

Performance evaluation of a dual fringe-imaging Michelson interferometer for air parameter measurements with a 355 nm Rayleigh–Mie lidar

Nicolas Cézard, Agnès Dolfi-Bouteyre, Jean-Pierre Huignard, and Pierre H. Flamant  »View Author Affiliations


Applied Optics, Vol. 48, Issue 12, pp. 2321-2332 (2009)
http://dx.doi.org/10.1364/AO.48.002321


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Abstract

A new concept of spectrum analyzer is proposed for short-range lidar measurements in airborne applications. It implements a combination of two fringe-imaging Michelson interferometers to analyze the Rayleigh–Mie spectrum backscattered by molecules and particles at 355 nm . The objective is to perform simultaneous measurements of four variables: the air speed, the air temperature and density, and the particle scattering ratio. The Cramer–Rao bounds are calculated to evaluate the best expectable measurement accuracies. The performance optimization shows that a Michelson interferometer with a path difference of 3 cm is optimal for air speed measurements in clear air. To optimize density, temperature, and scattering ratio measurements, the second interferometer should be set to a path difference of 10 cm at least; 20 cm would be better to be less sensitive to the actual Rayleigh–Brillouin line shape.

© 2009 Optical Society of America

OCIS Codes
(010.1310) Atmospheric and oceanic optics : Atmospheric scattering
(070.4790) Fourier optics and signal processing : Spectrum analysis
(100.2650) Image processing : Fringe analysis
(280.3640) Remote sensing and sensors : Lidar

ToC Category:
Remote Sensing and Sensors

History
Original Manuscript: September 26, 2008
Revised Manuscript: March 27, 2009
Manuscript Accepted: March 30, 2009
Published: April 14, 2009

Citation
Nicolas Cézard, Agnès Dolfi-Bouteyre, Jean-Pierre Huignard, and Pierre H. Flamant, "Performance evaluation of a dual fringe-imaging Michelson interferometer for air parameter measurements with a 355 nm Rayleigh-Mie lidar," Appl. Opt. 48, 2321-2332 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-12-2321

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