Ultrathin graphene diaphragm-based extrinsic Fabry-Perot interferometer for ultra-wideband fiber optic acoustic sensing

• Main Authors: Ni, Wenjun, Lu, Ping, Fu, Xin, Zhang, Wei, Shum, Perry Ping, Sun, Handong, Yang, Chunyong, Liu, Deming, Zhang, Jiangshan
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Fabry-Perot Interferometer; Fiber Optic Sensors; DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/88835; http://hdl.handle.net/10220/47625
• Institution: Nanyang Technological University

An ultra-wideband fiber optic acoustic sensor based on graphene diaphragm with a thickness of 10nm has been proposed and experimentally demonstrated. The two reflectors of the extrinsic Fabry-Perot interferometer is consist of fiber endface and graphene diaphragm, and the cavity is like a horn-shape...