MODELING OF THE BEND SENSITIVITY OF ASYMMETRICAL-CORE 2-MODE FIBER INTERFEROMETERS

被引：4
|
作者：
CARRARA, SLA
ALMEIDA, SFM
COVINGTON, CE
BLAKE, JN
机构：
[1] CTR TECN AEROESP,INST TECNOL AERONAUT,BR-12228900 S JOSE CAMPOS,SP,BRAZIL
[2] TEXAS A&M UNIV,COLLEGE STN,TX 77843
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1995年 / 12卷 / 05期
关键词：
OPTICAL FIBER SENSORS; OPTICAL WAVE-GUIDES; 2-MODE FIBERS; INTERFEROMETERS;
D O I：
10.1364/JOSAA.12.000869
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
It is shown that a small slope in the core index profile of a two-mode optical fiber causes the LP(01) and LP(11) modes to experience different shifts from the geometrical center of the fiber. This effect increases by orders of magnitude the bend sensitivity of two-mode fiber modal interferometers, allowing for interesting sensing applications. Experimental evidence endorses the results obtained from perturbation analyses. Optimization of the index profile to increase bend sensitivity is also discussed.
引用
收藏
页码：869 / 880
页数：12
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