Fiber-optic temperature sensor based on temperature-dependent refractive index of Germanium-silica coating stack

• Main Authors: Huang, Yuanshen, Zhang, Daohua, Zhang, Dawei, Tao, Chunxian, Hong, Ruijin
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
• Online Access: https://hdl.handle.net/10356/103776; http://hdl.handle.net/10220/25841
• Institution: Nanyang Technological University

We report on a novel fiber-optic temperature sensor based on the temperature-dependent refractive index of a germanium-silica (Ge-SiO2) coating stack. The relationship between the reflectivity and the temperature-dependent refractive index of the Ge-SiO2 coating stack at 1550 nm is theoretically inv...