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; Ian Bennion

doi:10.1364/AO.44.006890

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, Ian Bennion

Aston Institute of Photonic Technologies (AiPT)

Research output: Contribution to journal › Article › peer-review

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^-1up to 2500 N m^-1. We consider alternative designs of multicore fiber for optimal load sensing and compare experimental and modeled data.

Original language	English
Pages (from-to)	6890-6897
Number of pages	8
Journal	Applied Optics
Volume	44
Issue number	32
DOIs	https://doi.org/10.1364/AO.44.006890
Publication status	Published - 10 Nov 2005

Bibliographical note

© 2005 Optical Society of America
This paper was published in Applied optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-32-6890. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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10.1364/AO.44.006890

Transverse load and orientation measurement with multicore fiber Bragg gratings
© 2005 Optical Society of America This paper was published in Applied optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-32-6890. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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Cite this

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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.",

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AU - Silva-López, Manuel

AU - MacPherson, William N.

AU - Li, Cheng

AU - Moore, Andrew J.

AU - Barton, James S.

AU - Jones, Julian D.C.

AU - Zhao, Donghui

AU - Zhang, Lin

AU - Bennion, Ian

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Transverse load and orientation measurement with multicore fiber Bragg gratings

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