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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 30, Iss. 24 — Dec. 15, 2005
  • pp: 3269–3271

Miniature all-silica fiber optic pressure and acoustic sensors

Juncheng Xu, Xingwei Wang, Kristie L. Cooper, and Anbo Wang  »View Author Affiliations


Optics Letters, Vol. 30, Issue 24, pp. 3269-3271 (2005)
http://dx.doi.org/10.1364/OL.30.003269


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Abstract

We present a miniature diaphragm-based Fabry-Perot (F-P) interferometric fiber optic sensor fabricated by novel techniques for pressure or acoustic wave measurement that is only ∼0.32mm in diameter. By choosing different diaphragm thicknesses and effective diameters, we obtain a sensor measurement range from 5 to 10,000 psi (1psi=51.72Torr) and a frequency response up to 2 MHz. In addition, the sensor's F-P cavity can be set from micrometers to millimeters with a precision of several nanometers. With the all-silica structure, the sensor is reliable, biocompatible, and immune to electromagnetic interference and has high-temperature sensing capability.

© 2005 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3180) Instrumentation, measurement, and metrology : Interferometry

ToC Category:
Fiber Optics and Optical Communications

Virtual Issues
Vol. 1, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Juncheng Xu, Xingwei Wang, Kristie L. Cooper, and Anbo Wang, "Miniature all-silica fiber optic pressure and acoustic sensors," Opt. Lett. 30, 3269-3271 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-24-3269

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