Fiber Bragg grating sensors recorded in poly(methyl methacrylate) fiber often exhibit hysteresis in the response of Bragg wavelength to strain, particularly when exposed to high levels of strain. We show that, when such a fiber grating sensor is bonded directly to a substrate, the hysteresis is reduced by more than 12 times, compared to the case where the sensor is suspended freely between two supports.
© 2013 Optical Society of America
Remote Sensing and Sensors
Original Manuscript: February 6, 2013
Revised Manuscript: March 20, 2013
Manuscript Accepted: March 22, 2013
Published: April 18, 2013
Ada Abang and David J. Webb, "Influence of mounting on the hysteresis of polymer fiber Bragg grating strain sensors," Opt. Lett. 38, 1376-1378 (2013)