Fabry-Perot diaphragm fiber-optic sensor

The general theory of a diaphragm fiber-optic sensor (DFOS) is proposed. We use a critical test to determine if a DFOS is based on Fabry-Perot interference or intensity modulation. By use of the critical test, this is the first design, to the best of our knowledge, of a purely Fabry-Perot DFOS, fabr...

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Bibliographic Details
Published in:Applied optics (2004) 2007-11, Vol.46 (31), p.7614-7619
Main Authors: Chin, Ken K, Sun, Yan, Feng, Guanhua, Georgiou, George E, Guo, Kangzhu, Niver, Edip, Roman, Harry, Noe, Karen
Format: Article
Language:English
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Summary:The general theory of a diaphragm fiber-optic sensor (DFOS) is proposed. We use a critical test to determine if a DFOS is based on Fabry-Perot interference or intensity modulation. By use of the critical test, this is the first design, to the best of our knowledge, of a purely Fabry-Perot DFOS, fabricated with microelectromechanical system technology, and characterized as an audible microphone and ultrasonic hydrophone with orders of improvement in signal-to-noise ratio.
ISSN:1559-128X
DOI:10.1364/AO.46.007614