In situ refraction index of liquid measurement using polymer optical fibers

Mauro Lomer; Joseba Zubia; Olga Maria Conde; Jesus M. Mirapeix; A. M. Cubillas; Jose Miguel Lopez-Higuera

doi:10.1117/12.566697

9 June 2004 In situ refraction index of liquid measurement using polymer optical fibers

Mauro Lomer, Joseba Zubia, Olga Maria Conde, Jesus M. Mirapeix, A. M. Cubillas, Jose Miguel Lopez-Higuera

Proceedings Volume 5502, Second European Workshop on Optical Fibre Sensors; (2004) https://doi.org/10.1117/12.566697
Event: Second European Workshop on Optical Fibre Sensors, 2004, Santander, Spain

Abstract

A device for the measure of index of refraction of liquids in situ based on polymer optical fibers (POFs) was demonstrated. It consists in a sensor head of three passive POFs where two are coupled to two detectors and an electronic unit for the differential measure of signals. A differential operating principle is utilized to reduce noise such as light intensity fluctuation. The device was successfully checked measuring refraction index changes of the water with different concentrations of sugar, salt and alcohol.

Citation Download Citation

Mauro Lomer, Joseba Zubia, Olga Maria Conde, Jesus M. Mirapeix, A. M. Cubillas, and Jose Miguel Lopez-Higuera "In situ refraction index of liquid measurement using polymer optical fibers", Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); https://doi.org/10.1117/12.566697

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