Coupled Mode Characteristics From the Perturbation of 3D Printed Long-Period Fiber Grating Devices

Journal article

Authors/Editors

Strategic Research Themes

Industrial tool and instrumentation (Energy Efficiency)

Publication Details

Author list: Khun-In R., Usuda Y., Jiraraksopakun Y., Bhatranand A., Yokoi H.

Publisher: SpringerOpen

Publication year: 2020

Volume number: 10

Issue number: 3

Start page: 195

End page: 203

Number of pages: 9

ISSN: 1674-9251

eISSN: 2190-7439

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084995078&doi=10.1007%2fs13320-020-0585-2&partnerID=40&md5=79244717eee7f0ab07cdb21e62146288

Languages: English-Great Britain (EN-GB)

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Abstract

Characteristics of electric field from a coupled mode inside an optical fiber under perturbation by three-dimensional (3D) printed long-period fiber grating (LPFG) device have been observed in this work by the experiment and simulation. The various periodic index differences referring to the weights of perturbation by 3D printed LPFG device are applied on the single-mode fiber. The experimental results show that the resonant wavelength shift is a linear function of the grating period with the maximum coefficient of determination R2 of 0.9995. Some of resonant wavelengths are chosen to run simulations to investigate the electric field distribution. The scattering direction of the electric field states the magnitude of leaking optical power when the light transmits through the grating region applied to the single-mode fiber. Both the experimental and simulation results demonstrate that our proposed scheme can usefully be applied to selective tunable filters, intruder sensors, etc. © 2020, The Author(s).

Keywords

3D printed long-period fiber grating device, electric field distribution, resonant wavelength