18 May 2011 Refractive index sensitivity of fibre optic long period gratings with SiO2 nanoparticle based mesoporous coatings
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Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77539A (2011); doi: 10.1117/12.884777
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada
Abstract
A fibre optic long period grating (LPG) with an nano-assembled mesoporous coating of alternate layers of poly (allylamine hydrochloride) (PAH) and SiO2 nanospheres was used for the development of a fibre-optic refractometer. PAH/SiO2 films of different thickness have been deposited onto an LPG in order to study the effect of the film thickness on sensor performance. The device showed a sensitivity of 1927 nm/RIU over a RI range of 1.3233-1.4906.
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Sergiy Korposh, Seung-Woo Lee, Stephen W. James, Ralph P Tatam, "Refractive index sensitivity of fibre optic long period gratings with SiO2 nanoparticle based mesoporous coatings", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77539A (18 May 2011); doi: 10.1117/12.884777; https://doi.org/10.1117/12.884777
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KEYWORDS
Refractive index

Optical coatings

Silica

Cladding

Fiber optics

Nanoparticles

Optical fibers

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