Multi-wavelength fiber optic displacement sensing

E. Shafir; G. Berkovic

doi:10.1117/12.621043

28 September 2005 Multi-wavelength fiber optic displacement sensing

E. Shafir, G. Berkovic

Proceedings Volume 5952, Optical Fibers: Applications; 59520X (2005) https://doi.org/10.1117/12.621043
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

Imaging a single optical fiber onto a remote, reflective target using several wavelengths - while exploiting the chromatic dispersion of the imaging optics - can be used to sense displacements of the target. Light of each wavelength is back-reflected into the fiber at a unique target position. The basic principles of the method and the optical considerations to optimize its accuracy are described. Experimental demonstrations are presented, showing precisions of around 10-20 micrometers.

Citation Download Citation

E. Shafir and G. Berkovic "Multi-wavelength fiber optic displacement sensing", Proc. SPIE 5952, Optical Fibers: Applications, 59520X (28 September 2005); https://doi.org/10.1117/12.621043

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