D-SHAPED OPTICAL FIBER DESIGN FOR METHANE GAS SENSING

被引：25
|
作者：
MUHAMMAD, FA
STEWART, G
机构：
[1] Department of Electronic and Electrical Engineering, University of Strathclyde
来源：
ELECTRONICS LETTERS | 1992年 / 28卷 / 13期
关键词：
OPTICAL FIBERS; OPTICAL SENSORS;
D O I：
10.1049/el:19920761
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The Letter demonstrates how the sensitivity of D-fibre based sensors depends on its parameters (refractive index difference, core diameter and flat surface-core distance). The optimal fibre parameters are predicted using the authors' finite difference/perturbation theory model, and similar results were obtained using a ray optics method for the planar wave-guide to model the D fibre. It is concluded that the D fibre within its optimum architecture exhibits relatively low sensitivity. This sensitivity can however be improved using a suitable overcoating.
引用
收藏
页码：1205 / 1206
页数：2
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