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A comparative study and experimental observations of optical fiber sagnac interferometric based strain sensor by using different fibers

Lookup NU author(s): Dr Sneha Verma

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Abstract

Designing of strain monitoring system is a vibrant topic for the researchers. Strain monitoring systems are required in various fields such as mechanics, aeronautics, metallurgy and health monitoring of complex structures etc. Researchers designed different strain monitoring systems based on requirements. In this paper, we have reported a comparative study of Optical Fiber Sagnac Interferometer (OFSI) based strain sensors using three different types of fiber, i.e Polarization Maintaining Fiber (PMF), Standard Photonic Crystal Fiber (PCF) and High Birefringence Photonic Crystal Fiber (Hi-Bi PCF). The transmission spectrums of the sensors were recorded using Optical Spectrum Analyzer (OSA). We have experimentally analyzed the response and sensitivity of the sensors at different applied strains. The experimental results show that the optical interferometric strain sensor using PMF is having highest sensitivity in comparison to other sensors.

Publication metadata

Author(s): Chowdhury Sayantika, Verma Sneha, Gangopadhyay TK

Publication type: Article

Publication status: Published

Journal: Optical Fiber Technology

Year: 2019

Volume: 48

Pages: 283-288

Print publication date: 01/03/2019

Online publication date: 30/01/2019

Acceptance date: 18/01/2019

ISSN (print): 1068-5200

ISSN (electronic): 1095-9912

Publisher: Academic Press

URL: https://doi.org/10.1016/j.yofte.2019.01.014

DOI: 10.1016/j.yofte.2019.01.014

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