Non-membrane optical microphone based on longitudinal modes competition

• Main Authors: Pua, Chang Hong, Norizan, Siti Fatimah, Harun, Sulaiman Wadi, Ahmad, Harith
• Format: Article
• Published: Elsevier 2011
• Subjects: QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/19865/; https://doi.org/10.1016/j.sna.2011.04.034

We propose and demonstrate a simple and cost effective non-membrane optical microphone (OM) consisting of only a standard erbium doped fibre amplifier (EDFA) and a 25 km of conventional single mode fibre (SMF) as the sensing medium. A photo detector is used for data acquisition. The proposed setup u...