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Proceedings Paper

Distance measurements by three-beam optical feedback interferometry
Author(s): Thierry M. Bosch; Noel Servagent
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Paper Abstract

A new low-cost laser range finder using optical feedback interferometry has been developed. Our purpose is to design a high- accuracy sensor for short distances, the principle being based on using an optical fiber as a reference target. An accuracy of 10 \µm can be reached when measuring a distance of 2 cm between two targets located at around 4.5 m from the laser source.

Paper Details

Date Published: 7 March 2006
PDF: 11 pages
Proc. SPIE 4101, Laser Interferometry X: Techniques and Analysis, (7 March 2006); doi: 10.1117/12.498414
Show Author Affiliations
Thierry M. Bosch, Ecole des Mines de Nantes (France)
Noel Servagent, Ecole des Mines de Nantes (France)

Published in SPIE Proceedings Vol. 4101:
Laser Interferometry X: Techniques and Analysis
Gordon M. Brown; Malgorzata Kujawinska; Werner P. O. Jueptner; Ryszard J. Pryputniewicz; Ryszard J. Pryputniewicz; Mitsuo Takeda, Editor(s)

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