Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Tilted fiber Bragg gratings in multicore optical fibers for optical sensing

Not Accessible

Your library or personal account may give you access

Abstract

We have inscribed a tilted fiber Bragg grating (TFBG) in selected cores of a multicore optical fiber. The presence of the TFBG permits to couple light from the incident-guided mode to the cladding modes and to the neighbor cores, and this interaction can be used for optical sensing. We measured different magnitudes: strain, curvature magnitude and direction, and external refractive index. The curvature results show a linear dependence of the maximum crosstalk with the curvature magnitude with a sensitivity of 2.5dB/m1 as the curvature magnitude increases and at the same time a wavelength shift of 70pm/m1. Changes in the external refractive index gradually vanish the cladding modes resonances and the crosstalk between the different cores, obtaining a reduction of the 90% of the optical spectra integral area for refractive indexes between 1.398 and 1.474.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
Graphene-coated tilted fiber-Bragg grating for enhanced sensing in low-refractive-index region

Biqiang Jiang, Xin Lu, Xuetao Gan, Mei Qi, Yadong Wang, Lei Han, Dong Mao, Wending Zhang, Zhaoyu Ren, and Jianlin Zhao
Opt. Lett. 40(17) 3994-3997 (2015)

Multicore fiber-Bragg-grating-based directional curvature sensor interrogated by a broadband source with a sinusoidal spectrum

Di Zheng, Javier Madrigal, Hailan Chen, David Barrera, and Salvador Sales
Opt. Lett. 42(18) 3710-3713 (2017)

Direct writing of plane-by-plane tilted fiber Bragg gratings using a femtosecond laser

Andreas Ioannou, Antreas Theodosiou, Christophe Caucheteur, and Kyriacos Kalli
Opt. Lett. 42(24) 5198-5201 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved