High-sensitivity dispersive Mach -Zehnder interferometer based on a dissimilar-doping dual-core fiber for sensing applications

被引：10

作者：

Martins, Hugo F. ^{[1
,2
,4
]}

Bierlich, J. ^{[3
]}

Wondraczek, K. ^{[3
]}

Unger, S. ^{[3
]}

Kobelke, J. ^{[3
]}

Schuster, K. ^{[3
]}

Marques, M. B. ^{[1
,2
]}

Gonzalez-Herraez, M. ^{[4
]}

Frazao, O. ^{[1
,2
]}

机构：

[1] INESC Porto, P-4169007 Oporto, Portugal

[2] Univ Porto, Fac Ciencias, P-4169007 Oporto, Portugal

[3] Leibniz Inst Photon Technol IPHT Jena, D-07745 Jena, Germany

[4] Univ Alcala, Dept Elect, Madrid 28871, Spain

来源：

OPTICS LETTERS | 2014年 / 39卷 / 09期

基金：

欧洲研究理事会;

关键词：

PHOTONIC CRYSTAL FIBER; TEMPERATURE; SENSOR;

D O I：

10.1364/OL.39.002763

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A dual-core fiber in which one of the cores is doped with germanium and the other with phosphorus is used as an in-line Mach-Zehnder dispersive interferometer. By ensuring an equal length but with different dispersion dependencies in the interferometer arms (the two cores), high-sensitivity strain and temperature sensing are achieved. Opposite sensitivities for high and low wavelength peaks were also demonstrated when strain and temperature was applied. To our knowledge this is the first time that such behavior is demonstrated using this type of in-line interferometer based on a dual-core fiber. A sensitivity of (0.102 +/- 0.0020 nm/mu epsilon, between 0 and 800 mu epsilon) and (-4.2 +/- 0.2 nm/degrees C between 47 degrees C and 62 degrees C) is demonstrated. (C) 2014 Optical Society of America

引用

页码：2763 / 2766

页数：4

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