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 2.5  dB/m1 as the curvature magnitude increases and at the same time a wavelength shift of 70  pm/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
OSA Recommended Articles
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)

Fast and slow light in optical fibers through tilted fiber Bragg gratings

Marco Pisco, Armando Ricciardi, Stefania Campopiano, Christophe Caucheteur, Patrice Mégret, Antonello Cutolo, and Andrea Cusano
Opt. Express 17(26) 23502-23510 (2009)

Fabrication of high-temperature tilted fiber Bragg gratings using a femtosecond laser

Ruize Wang, Jinhai Si, Tao Chen, Lihe Yan, Houjun Cao, Xuantung Pham, and Xun Hou
Opt. Express 25(20) 23684-23689 (2017)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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