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

页码：1688 / 1696

页数：9

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