A Miniature Fiber-Optic Microphone Based on an Annular Corrugated MEMS Diaphragm | Semantic Scholar
Optical microphone offers greater sensitivity
Amazon.com: Sound Town 16 Channels Wireless Microphone Karaoke Mixer System with Optical (Toslink), AUX and 2 Handheld Microphones - Supports Smart TV, Home Theater, Sound Bar (SWM16-PRO) : Musical Instruments
An Optical Fiber Fabry-Perot Microphone Based on Corrugated Silver Diaphragm | Semantic Scholar
Micro-tip Cantilever as Low Frequency Microphone | Scientific Reports
Micro-optical microphones - SINTEF
Engineers have developed an optical microphone that sees sounds
US7826629B2 - Optical sensing in a directional MEMS microphone - Google Patents
Sennheiser Introduces Optical Microphone For Industrial & Medical Applications - ProSoundWeb