Direct airborne acoustic wave modulation of Fabry–Perot fiber laser (FPFL) over 100 kHz of operating bandwidth

• Main Authors: Pua, Chang Hong, Ahmad, Harith, Harun, Sulaiman Wadi, De La Rue, Richard M.
• Format: Article
• Published: Optical Society of America 2012
• Subjects: QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/19911/; https://doi.org/10.1364/AO.51.002772

The idea of applying a simple Fabry-Perot fiber laser (FPFL) set-up in a free-running condition as an acoustic sensing medium is proposed. Conventional optical microphone requires a stringently aligned diaphragm to mediate the acoustic impedance mismatch between air and silica fiber. Motivated by th...