ELLIPTIC-CORE 2-MODE OPTICAL-FIBER SENSOR IMPLEMENTATION METHODS

被引：78
|
作者：
MURPHY, KA
MILLER, MS
VENGSARKAR, AM
CLAUS, RO
机构：
[1] Fiber and Electro-Optics Research Center, Bradley Department of Electrical Engineering, Virginia Polytechnic Institute and State University, Blacksburg
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 1990年 / 8卷 / 11期
关键词：
D O I：
10.1109/50.60567
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：
We present experimental methods for the practical implementation of few-mode elliptical-core sensors. Techniques for desensitizing the lead-in and lead-out fibers are discussed and results of a vibration sensor embedded in a graphite-epoxy composite are presented. A scheme using a single-mode elliptical-core fiber as the leadin fiber and an offset circular-core single-mode fiber as the lead-out fiber is successfully implemented. Detection techniques for few-mode fiber sensors are reviewed and a novel fringe-counting method to unambiguously detect the amplitude and direction of dynamic strain is reported for the first time. © 1990 IEEE
引用
收藏
页码：1688 / 1696
页数：9
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