Theoretical Analysis of pi-Phase-Shifted Fiber Bragg Grating for Longitudinal Ultrasonic Acoustic Wave

Krishna Mohan Dwivedi , Sunil K Khijwania , Gaurav Trivedi , Tomasz Osuch

Abstract

This paper presents a detailed theoretical analysis of pi-phase-shifted fiber Bragg grating (π-FBG) for longitudinal ultrasonic (US) acoustic stain wave. The influence of grating controlling parameters (grating length, index change, and apodization), and US acoustic wavelengths on the wavelength-shift sensitivity of the π-FBG has been investigated. The effect of the slow-light in the π-FBG acoustic sensor has also been discussed. Simulation results show that apodization reduces the sensitivity of the π-FBG acoustic sensor. Coupled mode theory (CMT) and transfer matrix method (TMM) have been employed to simulate the spectral characteristics of π-FBG.

Author Krishna Mohan Dwivedi - [Indian Institute of Technology Guwahati]
Krishna Mohan Dwivedi,,
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, Sunil K Khijwania - [Indian Institute of Technology Guwahati]
Sunil K Khijwania,,
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, Gaurav Trivedi - [Indian Institute of Technology Guwahati]
Gaurav Trivedi,,
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, Tomasz Osuch (FEIT / PE)
Tomasz Osuch,,
- The Institute of Electronic Systems
Pages1-3
Publication size in sheets0.3
Book Proceedings of Workshop on Recent Advances in Photonics (WRAP), 2020, Institute of Electrical and Electronics Engineers, ISBN 978-1-7281-4750-5, [ Electronic ISBN: 978-1-7281-4749-9 ], DOI:10.1109/WRAP47485.2019.9013692
DOIDOI:10.1109/WRAP47485.2019.9013692
URL https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9013692
Languageen angielski
Score (nominal)20
Score sourcepublisherList
ScoreMinisterial score = 20.0, 27-08-2020, ChapterFromConference
Publication indicators Scopus Citations = 1
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