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Proceedings Paper

Simple refractometer based on in-line fiber interferometers
Author(s): Ó. Esteban; R. Martínez Manuel; M. G. Shlyagin
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Paper Abstract

A very simple but accurate optical fiber refractometer based on the Fresnel reflection in the fiber tip and two in-line low-reflective mirrors for light intensity referencing is reported. Each mirror was generated by connecting together 2 fiber sections with FC/PC and FC/APC connectors using the standard FC/PC mating sleeve. For the sensor interrogation, a standard DFB diode laser pumped with a sawtooth-wave current was used. A resolution of 6 x 10-4 was experimentally demonstrated using different liquids. A simple sensor construction and the use of low cost components make the reported system interesting for many applications.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963437 (28 September 2015); doi: 10.1117/12.2194604
Show Author Affiliations
Ó. Esteban, Univ. de Alcalá (Spain)
R. Martínez Manuel, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Univ. of Johannesburg (South Africa)
M. G. Shlyagin, Ctr. de Investigación Científica y de Educación Superior de Ensenada (Mexico)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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