Ultrahigh sensitivity refractive index sensor based on optical microfiber

• Main Authors: Ji, Wen Bin, Liu, Huan Huan, Tjin, Swee Chuan, Chow, Kin Kee, Lim, Anthony
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/102804; http://hdl.handle.net/10220/16421
• Institution: Nanyang Technological University

We demonstrate a nonadiabatic microfiber sensor with a taper diameter of few micrometers. The modal interference caused by the abrupt taper results in a sinusoidal spectral response. The wavelength shift arising because of the changes in the external refractive index is found to be significant, achi...