FIBER OPTIC EVANESCENT FIELD ABSORPTION SENSOR - EFFECT OF LAUNCHING CONDITION AND THE GEOMETRY OF THE SENSING REGION

被引：66

作者：

GUPTA, BD

SINGH, CD

SHARMA, A

机构：

来源：

OPTICAL ENGINEERING | 1994年 / 33卷 / 06期

关键词：

FIBER OPTICS; SENSORS; ABSORPTION; EVANESCENT FIELDS; TAPERS;

D O I：

10.1117/12.167173

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Fiber optic evanescent wave absorption sensors based on four different designs are described. The launching condition and the geometry of the sensing region are found to be the main parameters that can influence the sensitivity of the sensor. High sensitivity is achieved by launching the selected rays into the fiber having tapered sensing regions. The experimental results obtained are qualitatively explained using a simple model based on meridional rays.

引用

页码：1864 / 1868

页数：5

共 10 条

[1]

Gupta B. D., 1993, International Journal of Optoelectronics, V8, P409

[2]

GUPTA BD, IN PRESS APPL OPT

[3] FIBEROPTIC EVANESCENT FIELD ABSORPTION SENSOR [J].