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Proceedings Paper

Optomechanical optic modulator based on carbon nanotube coated fiber Bragg grating
Author(s): B. N. Shivananju; S. Asokan; Abha Misra
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Paper Abstract

We have demonstrated a novel concept of utilizing the photomechanical actuation in carbon nanotubes (CNT) to tune and reversibly switch the Bragg wavelength. When carbon nanotubes coated fiber Bragg grating (CNT-FBG) are externally exposed to a wide range of optical wavelengths from ultraviolet (UV) to infrared (0.2 to 200 μm) radiations, a strain is induced in the CNT, which alters the grating pitch and refractive index in the CNT-FBG system resulting in a shift in the Bragg wavelength (10-12 to 10-9 m) range. This optomechanical optic modulator finds applications in communication, sensors, actuators as well as for the real time monitoring of the photo-induced strain in nano-scale materials.

Paper Details

Date Published:
Proc. SPIE 8982, Optical Components and Materials XI, 898226; doi: 10.1117/12.2040236
Show Author Affiliations
B. N. Shivananju, Indian Institute of Science (India)
S. Asokan, Applied Photonics Initiative, Indian Institute of Science (India)
Indian Institute of Science (India)
Abha Misra, Indian Institute of Science (India)
Indian Institute of Science (India)

Published in SPIE Proceedings Vol. 8982:
Optical Components and Materials XI
Michel J. F. Digonnet; Shibin Jiang, Editor(s)

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