Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions

• Main Authors: Tian, Qin, Xin, Guoguo, Lim, Kok Sing, He, Yudong, Liu, Ji, Ahmad, Harith, Liu, Xiaochong, Yang, Hang Zhou
• Format: Article
• Published: Optical Society of America 2020
• Subjects: QC Physics
• Online Access: http://eprints.um.edu.my/36337/

We demonstrated an optical fiber sensor based on a cascaded fiber Fabry-Perot interferometer (FPI)-regenerated fiber Bragg grating (RFBG) for simultaneous measurement of temperature and strain under high temperature environments. The FPI is manufactured from a similar to 74 mu m long hollow core sil...