Abstract

We propose and experimentally demonstrate a method to significantly extend the sensitive window of tilted fiber-Bragg grating (TFBG) into low-refractive-index region with the integration of graphene coating. The coupling between cladding modes of TFBG and graphene coating results in an obvious modification of the cladding-mode envelope, which provides a sensitive regime relying on graphene’s complex refractive index. Interacting the graphene-coated TFBG with various aqueous solutions, we observe strongly enhanced sensitivity in the low-refractive-index region of 1–1.428, which is about 10-fold extended from that of the unloaded TFBG. The graphene-coated TFBGs present great potentials in the biochemical sensing window.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Absolute near-infrared refractometry with a calibrated tilted fiber Bragg grating

Wenjun Zhou, David J. Mandia, Seán T. Barry, and Jacques Albert
Opt. Lett. 40(8) 1713-1716 (2015)

Enhanced strain and temperature sensing by reduced graphene oxide coated etched fiber Bragg gratings

Sridevi. S, K. S. Vasu, S. Asokan, and A. K. Sood
Opt. Lett. 41(11) 2604-2607 (2016)

Plasmonic nanoshell functionalized etched fiber Bragg gratings for highly sensitive refractive index measurements

Jörg Burgmeier, Amin Feizpour, Wolfgang Schade, and Björn M. Reinhard
Opt. Lett. 40(4) 546-549 (2015)

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 (5)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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