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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Laroche, M., Kervevan, L., Gilles, H. et al. Doppler velocimetry using self-mixing effect in a short Er–Yb-doped phosphate glass fiber laser. Appl. Phys. B 80, 603–607 (2005). https://doi.org/10.1007/s00340-005-1738-0
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DOI: https://doi.org/10.1007/s00340-005-1738-0