Improved refractive index sensitivity utilizing long-period gratings with periodic corrugations on cladding
Ji, Wen Bin
Tjin, Swee Chuan
Date of Issue2012
School of Electrical and Electronic Engineering
Photonics Research Centre
A new structure of Long-Period Gratings (LPGs) sensor is introduced as a sensitive ambient RI sensor. This structure consists of creating periodic corrugations on the cladding of the LPG. The experimental results show that this LPG structure has good performances in terms of linearity and sensitivity and serves as a highly sensitive and cost-effective sensor. It also has the advantage of portability as the corrugation can also serve as the reservoir for the specimen collection to be tested.
DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Journal of sensors
© 2012 The Authors. This paper was published in Journal of sensors and is made available as an electronic reprint (preprint) with permission of the authors. The paper can be found at the following official DOI: [http://dx.doi.org/10.1155/2012/483471]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.