A Fiber Optic Micro-Curvature Sensor Based on an In-line Mach-Zehnder Interferometer and Erbium-Doped Fiber

V. H. R. Cardoso, M. L. C. Amaral,M. T. M. R. Giraldi,C. S. Fernandes,J. C. W. A. Costa

2021 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)（2021）

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摘要

A sensor based on an in-line Mach-Zehnder and Erbium-Doped Fiber for micro curvature measurement is proposed and experimentally demonstrated. The sensor is composed by of single mode-multimode-Erbium doped fiber-multimode-single mode fiber (MMF-EDF-MMF) structure. The experimental results show curvature sensitivities of −5.18nm/µm, −5.93nm/µm e −5.63nm/µm in the range of C = 10.25 to 12.23 µm...

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关键词

Fiber Optical Sensor,Core Diameter Mismatch,Erbium Doped Fiber,Mach-Zehnder Interferometer

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