Doppler velocimetry using self-mixing effect in a short Er–Yb-doped phosphate glass fiber laser |
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| Authors: | M. Laroche L. Kervevan H. Gilles S. Girard J. K. Sahu |
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| Affiliation: | (1) Centre Interdisciplinaire de Recherches Ions Lasers (CIRIL), UMR 6637 CEA-CNRS-ENSICAEN, Université de Caen, 6 Blvd Maréchal Juin, 14050 Caen Cedex, France;(2) Optoelectronics Research Centre (ORC), University of Southampton, Southampton, SO17 1BJ, UK |
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| Abstract: | ![]()
Accurate and highly sensitive speed measurements have been successfully demonstrated by the optical feedback velocimetry technique using the self-mixing modulation effect in a double-clad Er–Yb-doped fiber laser. The sensitivity to back-scattered light has been investigated regarding the Doppler frequency shift or the target distance, and it has been shown that the velocimeter is still sensitive to a target located at 20 m and for speeds as high as 13 m s–1. |
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| Keywords: | 42.55.Wd 42.60.By 07.60.j 06.30.Gv |
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