7 March 2006 Distance measurements by three-beam optical feedback interferometry
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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.
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Thierry M. Bosch, Thierry M. Bosch, Noel Servagent, Noel Servagent, } "Distance measurements by three-beam optical feedback interferometry", Proc. SPIE 4101, Laser Interferometry X: Techniques and Analysis, (7 March 2006); doi: 10.1117/12.498414; https://doi.org/10.1117/12.498414
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