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Convention Paper

Fiber-Coupled Optical Microphones

Authors: Gorelik, Vladimir; Peissig, Juergen; Kudaev, Sergey; Schreiber, Peter

AES Convention 116 · Paper 6132 · May 2004

Abstract

Motivated by the advantages of optical sensors, like immunity with respect to EMI/RFI and electrically isolated realization, today´s fiber- and micro-optics technology enables the manufacturing of sensitive optical microphones. In the first part of this article a short review of applicable sensing principles is given and pros and cons for realization are discussed. In the second part design, manufacturing and characterization for two fiber-coupled optical microphones employing optical sampling of a membrane are presented.

Details

Published in
AES Convention 116
AES Convention
116
Paper number
6132
Publication date
May 6, 2004
Session subject
Microphones
Affiliation
Fraunhofer Institute for Applied Optics and Precision Engineering, Jena, Germany ; Sennheiser electronic GmbH & Co. KG, Wedemark, Germany (See document for exact affiliation information.)
Type
Convention Paper