Investigation of a Bragg grating-based Fabry-Perot structure inscribed using femtosecond laser micromachining in an adiabatic fiber taper

• Main Authors: Madan, Aayush, Yap, Stephanie Hui Kit, Paulose, Varghese, Chang, Wonkeun, Shum, Perry Ping, Hao, Jianzhong
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Electrical and electronic engineering; Fabry–Perot; Microfiber Sensor Structure
• Online Access: https://hdl.handle.net/10356/146250
• Institution: Nanyang Technological University

This paper presents the fabrication of a fiber Bragg grating (FBG)-based Fabry-Perot (FP) structure (7 mm total length) in an adiabatic fiber taper, investigates its strain and temperature characteristics, and compares the sensing characteristics with a standard polyimide coated FBG sensor. Firstly,...