Modeling and performance evaluation of ferrocene-based polymer clad tapered optical fiber gas sensors

被引:18
|
作者
Shadaram, M [1 ]
Espada, L [1 ]
Martinez, J [1 ]
Garcia, F [1 ]
机构
[1] Univ Texas, Dept Elect & Comp Engn, El Paso, TX 79968 USA
关键词
tapered optical fibers; variable-index materials; fiber-optic sensors;
D O I
10.1117/1.601710
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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. (C) 1998 Society of Photo-Optical Instrumentation Engineers.
引用
收藏
页码:1124 / 1129
页数:6
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