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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Glenn D. Boreman
  • Vol. 44, Iss. 32 — Nov. 10, 2005
  • pp: 6890–6897

Transverse load and orientation measurement with multicore fiber Bragg gratings

Manuel Silva-López, William N. MacPherson, Cheng Li, Andrew J. Moore, James S. Barton, Julian D. C. Jones, Donghui Zhao, Lin Zhang, and Ian Bennion  »View Author Affiliations


Applied Optics, Vol. 44, Issue 32, pp. 6890-6897 (2005)
http://dx.doi.org/10.1364/AO.44.006890


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Abstract

We demonstrate the sensitivity of Bragg gratings in a multicore fiber to transverse load. The Bragg peaks are split because of stress-induced birefringence, the magnitude of which depends upon the load and grating position relative to the load axis. Experiments show that a set of gratings in a four-core fiber can measure a load axis angle to ±5° and a load magnitude to ±15 N m−1 up to 2500 N m−1. We consider alternative designs of multicore fiber for optimal load sensing and compare experimental and modeled data.

© 2005 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.1480) Optical devices : Bragg reflectors
(260.1440) Physical optics : Birefringence

ToC Category:
Optical Devices

History
Original Manuscript: April 25, 2005
Manuscript Accepted: July 6, 2005
Published: November 10, 2005

Citation
Manuel Silva-López, William N. MacPherson, Cheng Li, Andrew J. Moore, James S. Barton, Julian D. C. Jones, Donghui Zhao, Lin Zhang, and Ian Bennion, "Transverse load and orientation measurement with multicore fiber Bragg gratings," Appl. Opt. 44, 6890-6897 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-32-6890

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