Simultaneous measurement of three parameters using an all-fiber Mach-Zehnder interferometer based on suspended twin-core fibers

被引：10
|
作者：
Oliveira Silva, Susana F. [1 ]
Santos, Jose L. [2 ]
Kobelke, Jens [3 ]
Schuster, Kay [3 ]
Frazao, Orlando [1 ]
机构：
[1] INESC Porto, UOSE, P-4169007 Oporto, Portugal
[2] Univ Porto, Fac Ciencias, P-4169007 Oporto, Portugal
[3] IPHT Inst Photon Technol, D-07745 Jena, Germany
来源：
OPTICAL ENGINEERING | 2011年 / 50卷 / 03期
关键词：
Mach-Zehnder interferometer; twin-core fibers; strains; temperatures; curvature; MULTICORE OPTICAL-FIBER; 2-AXIS BEND MEASUREMENT; SENSOR;
D O I：
10.1117/1.3553482
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We describe an all-fiber Mach-Zehnder interferometric configuration based on a suspended twin-core fiber. Because of the birefringence of the fiber cores, two interferometers are obtained by illuminating the fiber with polarized light. Applying strain, curvature, and temperature to the sensing head, different sensitivities are observed that permit the use of the matrix method to discriminate these three measurands. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3553482]
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页数：3
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