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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 22 — Aug. 1, 2006
  • pp: 5590–5596

Laser-machined fibers as Fabry–Perot pressure sensors

Stuart Watson, Matthew J. Gander, William N. MacPherson, James S. Barton, Julian D. C. Jones, Thomas Klotzbuecher, Torsten Braune, Johannes Ott, and Felix Schmitz  »View Author Affiliations

Applied Optics, Vol. 45, Issue 22, pp. 5590-5596 (2006)

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Cavities have been laser ablated in the ends of single-mode optical fibers and sealed by aluminized polycarbonate diaphragms to produce Fabry–Perot pressure sensors. Both conventional fibers and novel, multicore fibers were used, demonstrating the possibility of producing compact arrays of sensors and multiple sensors on an individual fiber 125 μm in diameter. This high spatial resolution can be combined with high temporal resolution by simultaneously interrogating the sensors by using separate laser sources at three wavelengths. Shock tube tests showed a sensor response time of 3 μs to a step increase in pressure.

© 2006 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(140.3390) Lasers and laser optics : Laser materials processing

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 6, 2005
Manuscript Accepted: February 14, 2006

Stuart Watson, Matthew J. Gander, William N. MacPherson, James S. Barton, Julian D. C. Jones, Thomas Klotzbuecher, Torsten Braune, Johannes Ott, and Felix Schmitz, "Laser-machined fibers as Fabry-Perot pressure sensors," Appl. Opt. 45, 5590-5596 (2006)

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