Photonic bandgap fiber for infiltration-free refractive-index sensing

• Main Authors: Yong, Derrick, Yu, Xia, Ren, Guobin, Zhang, Huiyu, Zhang, Ying, Chan, Chi Chiu, Wei, Huifeng, Tong, Weijun
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/98710; http://hdl.handle.net/10220/13438
• Institution: Nanyang Technological University

We report a novel photonic bandgap sensor, comprising a D-shaped fiber fabricated via side polishing. It takes advantage of measurand-elicited refractive-index profile changes upon exposure of its side-polished region to an ambient liquid. The bandgap shift can be induced by perturbations in close p...