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Proceedings Paper

Evanescent Wave Fiber Optic Chemical Sensor
Author(s): C. A. Villarruel; D. D. Dominguez; A. Dandridge
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Paper Abstract

Fiber Optic intensity sensors based on the interaction between an external medium and t he evanescent wave of unclad and tapered multimode and single mode fibers have been developed to measure refractive index, temperature and liquid level. Here we describe an intensity bio-chemical fiber optic sensor (BCFOS) where absorption of t he evanescent wave by a dye-labeled solution is used to modulate, attenuate, t he intensity of t he signal in t he core of the fiber. The fabrication and performance is described for laboratory prototype sensors using etched multimode and tapered single mode fibers.

Paper Details

Date Published: 14 October 1987
PDF: 5 pages
Proc. SPIE 0798, Fiber Optic Sensors II, (14 October 1987); doi: 10.1117/12.941110
Show Author Affiliations
C. A. Villarruel, U S Naval Research Laboratory (United States)
D. D. Dominguez, U S Naval Research Laboratory (United States)
A. Dandridge, U S Naval Research Laboratory (United States)

Published in SPIE Proceedings Vol. 0798:
Fiber Optic Sensors II
Anna Maria Verga Scheggi, Editor(s)

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