Displacement sensor based on bent optical fiber with structural imperfections on the outer side

Anatoly Babchenko; Noam Itzkovich; Jonathan Maryles

doi:10.1117/12.623426

23 May 2005 Displacement sensor based on bent optical fiber with structural imperfections on the outer side

Anatoly Babchenko, Noam Itzkovich, Jonathan Maryles

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623426
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

Abstract

The concept of highly sensitive fiber optic displacement sensors is presented. It is based on macrobending plastic fiber with structural imperfections on the outer side. The theoretical principles of optical power losses in such fibers due to multiple curvatures are based on a surface that serves as a model for an imperfect layer and has the same optical properties. The sensor was tested using two different types of roughness topologies. We discuss some experimental results that confirm our prediction of considerable dependence of the output numerical aperture (the output signal) on the changing imperfections caused by bending the fiber.

Citation Download Citation

Anatoly Babchenko, Noam Itzkovich, and Jonathan Maryles "Displacement sensor based on bent optical fiber with structural imperfections on the outer side", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623426

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