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Proceedings Paper

Multi-target range finder with optical continuous frequency modulation
Author(s): Luc Perret; Pierre Pfeiffer; Ayoub Chakari
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Paper Abstract

This paper presents new results on a scanning wavelength interferometer for absolute distances measurements. We report its performances on one and two simultaneous targets with a Fourier Transform Technique (FTT) and a regular sampling. Then the limitations of the FTT are discussed, especially with regard to the tunable laser source performances. Finally it concludes on the new results acquired by the use of a non-uniform sampling technique which reduces the non-linearities of the sweeping speed and demonstrates a relative uncertainty of some 10-6 for distances of 0.25 to 1 m.

Paper Details

Date Published: 22 April 2006
PDF: 10 pages
Proc. SPIE 6189, Optical Sensing II, 61890I (22 April 2006); doi: 10.1117/12.662049
Show Author Affiliations
Luc Perret, Univ. Louis Pasteur (France)
Pierre Pfeiffer, Univ. Louis Pasteur (France)
Ayoub Chakari, Univ. Louis Pasteur (France)

Published in SPIE Proceedings Vol. 6189:
Optical Sensing II
Brian Culshaw; Anna G. Mignani; Hartmut Bartelt; Leszek R. Jaroszewicz, Editor(s)

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