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

Sridevi, S and Vasu, KS and Asokan, S and Sood, AK (2016) Enhanced strain and temperature sensing by reduced graphene oxide coated etched fiber Bragg gratings. In: OPTICS LETTERS, 41 (11). pp. 2604-2607.

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Official URL: http://dx.doi.org/10.1364/OL.41.002604

Abstract

This Letter reports on an etched fiber Bragg grating (eFBG) sensor coated with reduced graphene oxide (RGO) having enhanced sensitivity for physical parameters such as strain and temperature. The synergetic effect of the changes in grating pitch and refractive index of RGO with change in temperature or strain enhances the shift in Bragg wavelength (lambda(B)). The RGO-coated eFBG sensors exhibit a strain sensitivity of 5.5 pm/mu epsilon (similar to 5 times that of bare fiber Bragg gratings) and temperature sensitivity of 33 pm/degrees C (similar to 3 times that of bare fiber Bragg gratings). The resolutions of similar to 1 mu epsilon and similar to 0.3 degrees C have been obtained for strain and temperature respectively, using RGO-coated eFBG sensors. (C) 2016 Optical Society of America

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Depositing User: Id for Latest eprints
Date Deposited: 08 Jul 2016 06:45
Last Modified: 23 Oct 2018 07:24
URI: http://eprints.iisc.ac.in/id/eprint/54149

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