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Applied Optics

Applied Optics


  • Vol. 40, Iss. 34 — Dec. 1, 2001
  • pp: 6199–6202

Locating acoustic emission with an amplitude-multiplexed acoustic sensor array based on a modified Mach–Zehnder interferometer

Jianmin Gong, J. M. K. MacAlpine, Wei Jin, and Yanbiao Liao  »View Author Affiliations

Applied Optics, Vol. 40, Issue 34, pp. 6199-6202 (2001)

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We report on an amplitude-division-multiplexed interferometric sensor array for locating acoustic emission. Preliminary experiments were carried out with a modified Mach–Zehnder interferometer consisting of two sensing arms and a reference arm and demonstrated a one-dimensional location accuracy of a few centimeters. The system can be extended for two- and three-dimensional location of acoustic emissions by the addition of one or two more sensing arms, respectively, in the interferometer.

© 2001 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4230) Fiber optics and optical communications : Multiplexing

Original Manuscript: February 26, 2001
Revised Manuscript: July 2, 2001
Published: December 1, 2001

Jianmin Gong, J. M. K. MacAlpine, Wei Jin, and Yanbiao Liao, "Locating acoustic emission with an amplitude-multiplexed acoustic sensor array based on a modified Mach–Zehnder interferometer," Appl. Opt. 40, 6199-6202 (2001)

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