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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 11 — Apr. 10, 2010
  • pp: 2198–2203

Musical instrument recordings made with a fiber Fabry–Perot cavity: photonic guitar pickup

Nicholas Ballard, Daniel Paz-Soldan, Peter Kung, and Hans-Peter Loock  »View Author Affiliations


Applied Optics, Vol. 49, Issue 11, pp. 2198-2203 (2010)
http://dx.doi.org/10.1364/AO.49.002198


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Abstract

A 1 cm long, low-finesse fiber-optic cavity was used as a transducer for the vibrations of the soundboard of an acoustic guitar and of a violin. The reflected light is detected and then amplified and recorded using conventional audio instrumentation. The fiber-optic pickup is found to have a high response range in both amplitude (up to 100 μm displacement) and audio frequency (DC to 20 kHz ) and good linearity up to a displacement of 225 μm . The audio noise is found to arise from the fiber-optic cables and, to a lesser extent, from the laser and laser driver.

© 2010 Optical Society of America

OCIS Codes
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(230.1040) Optical devices : Acousto-optical devices
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 21, 2010
Revised Manuscript: March 4, 2010
Manuscript Accepted: March 8, 2010
Published: April 7, 2010

Citation
Nicholas Ballard, Daniel Paz-Soldan, Peter Kung, and Hans-Peter Loock, "Musical instrument recordings made with a fiber Fabry-Perot cavity: photonic guitar pickup," Appl. Opt. 49, 2198-2203 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-11-2198

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