Refractive index sensor using microfiber-based Mach-Zehnder interferometer

• Main Authors: Sun, Qizhen, Liang, Ruibing, Shum, Perry Ping, Liu, Deming, Wo, Jianghai, Wang, Guanghui, Cui, Ying
• 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/10356/98012; http://hdl.handle.net/10220/10934
• Institution: Nanyang Technological University

A simple and robust refractive index (RI) sensor based on a Mach–Zehnder interferometer has been demonstrated. A section of optical microfiber drawn from silica fiber is employed as the sensing arm. Because of the evanescent field, a slight change of the ambient RI will lead to the variation of the...