Integrated-optical acoustical sensors

We have investigated the feasibility of a novel integrated-optical (IO) microphone. Sound-pressure variations acting on a small membrane directly modulate the phase of a guided wave in a (planar) optical waveguide by the IO nanomechanical effect. The phase modulation is transformed into an intensity...

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Veröffentlicht in:	Sensors and actuators. A, Physical Physical, 1994-04, Vol.41 (1), p.93-97
Hauptverfasser:	Pliska, P., Lukosz, W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustical measurements and instrumentation Acoustics Exact sciences and technology Fundamental areas of phenomenology (including applications) Physics Transduction acoustical devices for the generation and reproduction of sound
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Beschreibung
Zusammenfassung:	We have investigated the feasibility of a novel integrated-optical (IO) microphone. Sound-pressure variations acting on a small membrane directly modulate the phase of a guided wave in a (planar) optical waveguide by the IO nanomechanical effect. The phase modulation is transformed into an intensity modulation in an IO difference (or polarimetric) interferometer.
ISSN:	0924-4247 1873-3069
DOI:	10.1016/0924-4247(94)80094-4