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Sensitivity enhancement of fiber Bragg gratings to transverse stress by using microstructural fibers

Charles Jewart, Kevin P. Chen, Ben McMillen, Michael M. Bails, Steven P. Levitan, John Canning, and Ilya V. Avdeev

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Abstract

We present simulation and experimental results of fiber Bragg grating responses to transverse stress in microstructure fibers. The grating wavelength shifts and peak splits are studied as a function of external load and fiber orientation. Both simulation and measurement results indicate that the sensitivity of grating sensors to the transverse stress can be enhanced by a factor of eight in a two-hole fiber over that in a standard fiber.

© 2006 Optical Society of America

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