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Optical Engineering

Modeling and performance evaluation of ferrocene-based polymer clad tapered optical fiber gas sensors
Author(s): Mehdi Shadaram; Loren I. Espada; Juan J. Martinez; Fernando Garcia
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Paper Abstract

The possibility of utilizing certain polymers, known as variable-index materials, as cladding in tapered optical fibers for gas sensing is explored. We have shown that any small variation in the refractive index of the cladding of a tapered single-mode fiber has a direct influence on the transmission characteristic of the tapered region. A 4% deviation in the refractive index of a certain polymer is obtained upon the exposure of the polymer to ammonia. Sensitivity, repeatability, and selectivity of several fabricated sensors are also illustrated.

Paper Details

Date Published: 1 April 1998
PDF: 6 pages
Opt. Eng. 37(4) doi: 10.1117/1.601710
Published in: Optical Engineering Volume 37, Issue 4
Show Author Affiliations
Mehdi Shadaram, Univ. of Texas/El Paso (United States)
Loren I. Espada, Univ. of Texas/El Paso (United States)
Juan J. Martinez, Univ. of Texas/El Paso (United States)
Fernando Garcia, Univ. of Texas/El Paso (United States)

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