Distance measurements by three-beam optical feedback interferometry

Thierry M. Bosch; Noel Servagent

doi:10.1117/12.498414

7 March 2006 Distance measurements by three-beam optical feedback interferometry

Thierry M. Bosch, Noel Servagent

Proceedings Volume 4101, Laser Interferometry X: Techniques and Analysis; (2006) https://doi.org/10.1117/12.498414
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

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.

Citation Download Citation

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

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