This paper discusses the known principles of building an optical microphone transducer. It also describes bubble-sized measurements and Phone-Or's light transducer principle, its specifics and distance resolution. The paper discusses the optical microphone's specifications including the basics and characteristics; diaphragm specifics and its acoustical characteristics; noise, sensitivity, dynamic range, frequency and directional characteristics; and response to humidity, EMI, and RFI. A -smart- optical microphone and the optical microphone's prospects are also presented.

Authors: Paritsky, Alexander; Kots, Alexander; Niehoff, Wolfgang H.; Gorelik, Vladimir; Hibbing, Manfred
Affiliations: Phone-Or Ltd., Or-Yehuda, Israel ; Sennheiser Electronics Ltd., Wedemark, Germany(See document for exact affiliation information.)
AES Convention: 107 (September 1999) Paper Number: 4989
Publication Date: September 1, 1999
Session Subject: Microphone; Microphone Techniques

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