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Proceedings Paper

Performance improvement of a cascaded tapered long period grating refractometer by using nano-sized high refractive index coatings
Author(s): P. Pilla; P. Foglia Manzillo; M. Giordano; M. L. Korwin-Pawlowski; W. J. Bock; A. Cusano
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Paper Abstract

In this work, nano-sized polymeric coatings with higher refractive index than the cladding one were used to induce the modal transition in tapered long period gratings in a cascaded configuration. The aim of this experimental investigation was to increase the sensitivity of the bare device to surrounding refractive index changes while preserving a good fringes visibility. An original configuration of the device in terms of coated/not coated area was identified that best achieve the aforementioned target.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70041V (16 May 2008); doi: 10.1117/12.785879
Show Author Affiliations
P. Pilla, Univ. of Sannio (Italy)
Institute for Composite and Biomedical Materials, CNR (Italy)
P. Foglia Manzillo, Univ. of Sannio (Italy)
M. Giordano, Institute for Composite and Biomedical Materials, CNR (Italy)
M. L. Korwin-Pawlowski, Univ. du Québec en Outaouais (Canada)
W. J. Bock, Univ. du Québec en Outaouais (Canada)
A. Cusano, Univ. of Sannio (Italy)


Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors

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