Carbon nanotube coated fiber Bragg grating for photomechanical optic modulator

Shivananju, BN and Suri, Ashish and Asokan, Sundarrajan and Misra, Abha (2013) Carbon nanotube coated fiber Bragg grating for photomechanical optic modulator. In: REVIEW OF SCIENTIFIC INSTRUMENTS, 84 (9).

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Abstract

We have demonstrated novel concept of utilizing the photomechanical actuation in carbon nanotubes (CNTs) to tune and reversibly switch the Bragg wavelength. When fiber Bragg grating coated with CNTs (CNT-FBG) is exposed externally to a wide range of optical wavelengths, e. g., ultraviolet to infrared (0.2-200 mu m), a strain is induced in the CNTs which alters the grating pitch and refractive index in the CNT-FBG system resulting in a shift in the Bragg wavelength. This novel approach will find applications in telecommunication, sensors and actuators, and also for real time monitoring of the photomechanical actuation in nanoscale materials. (C) 2013 AIP Publishing LLC.

Item Type:	Journal Article
Publication:	REVIEW OF SCIENTIFIC INSTRUMENTS
Publisher:	AMER INST PHYSICS
Additional Information:	copyright for this article belongs to AIP
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	14 Nov 2013 10:47
Last Modified:	14 Nov 2013 10:47
URI:	http://eprints.iisc.ac.in/id/eprint/47757

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