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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 36 — Dec. 20, 2006
  • pp: 9041–9048

Dynamic two-axis curvature measurement using multicore fiber Bragg gratings interrogated by arrayed waveguide gratings

Amanda Fender, Euan J. Rigg, Robert R. J. Maier, William N. MacPherson, James S. Barton, Andrew J. Moore, Julian D. C. Jones, Donghui Zhao, Lin Zhang, Ian Bennion, Scott McCulloch, and Ben J. S. Jones  »View Author Affiliations


Applied Optics, Vol. 45, Issue 36, pp. 9041-9048 (2006)
http://dx.doi.org/10.1364/AO.45.009041


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Abstract

We describe the use of arrayed waveguide gratings (AWGs) in the interrogation of fiber Bragg gratings (FBGs) for dynamic strain measurement. The ratiometric AWG output was calibrated in a static deflection experiment over a ± 200   με range. Dynamic strain measurement was demonstrated with a FBG in a conventional single-mode fiber mounted on the surface of a vibrating cantilever and on a piezoelectric actuator, giving a resolution of 0.5   με at 2.4 kHz. We present results of this technique extended to measure the dynamic differential strain between two FBG pairs within a multicore fiber. An arbitrary cantilever oscillation of the multicore fiber was determined from curvature measurements in two orthogonal axes at 1125 Hz with a resolution of 0.05 m 1 .

© 2006 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(230.1480) Optical devices : Bragg reflectors

History
Original Manuscript: July 10, 2006
Manuscript Accepted: August 11, 2006

Citation
Amanda Fender, Euan J. Rigg, Robert R. J. Maier, William N. MacPherson, James S. Barton, Andrew J. Moore, Julian D. C. Jones, Donghui Zhao, Lin Zhang, Ian Bennion, Scott McCulloch, and Ben J. S. Jones, "Dynamic two-axis curvature measurement using multicore fiber Bragg gratings interrogated by arrayed waveguide gratings," Appl. Opt. 45, 9041-9048 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-36-9041

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