Ultrasensitive fiber-optic temperature sensor based on cascaded Sagnac interferometers with a nematic liquid crystal film

• Main Authors: Fan, Xiaoya, Chen, Hailiang, Zheng, Yu, Liu, Yundong, Chen, Qiang, Zhang, Yingyue, Ma, Mingjian, Du, Huijing, Li, Shuguang, Shum, Perry Ping
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2023
• Subjects: Engineering::Electrical and electronic engineering; Nematic Liquid Crystal; Cascaded Sagnac Interferometers
• Online Access: https://hdl.handle.net/10356/164093
• Institution: Nanyang Technological University

We demonstrated an ultrasensitive fiber-optic temperature sensor based on cascaded Sagnac interferometers (CSIs). One of the Sagnac interferometers (SIs) consisted of a panda polarization-maintaining fiber (PMF) as the reference arm, while the other one contained two single-mode patch cables in a fe...