Strain and temperature sensor applications of fiber Bragg gratings

P. Chojnowski; K. P. Jędrzejewski

doi:10.1117/12.714878

12 October 2006 Strain and temperature sensor applications of fiber Bragg gratings

P. Chojnowski, K. P. Jędrzejewski

Proceedings Volume 6347, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2006; 63470W (2006) https://doi.org/10.1117/12.714878
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2006, 2006, Wilga, Poland

Abstract

Sensing properties of fiber Bragg grating (FBG) strain and temperature sensors produced in optical fibers were investigated. Several Bragg gratings were made by the scanning phase mask method. The double frequency 244 nm 100 mW Coherent argon-ion laser was used. Standard telecom fibers were used in the experiment but it was necessary to hydrogenate them under the pressure of 120 bar before the UV illumination. Bragg gratings spectral transmission characteristics were measured, filter central wavelength and FWHM calculated. Gratings were stretched and their strain sensitivity determined. FBG was also attached to the surface of elastic bar. It was bended in the squeeze and stretch configurations. Fiber Bragg grating temperature response was investigated and its sensitivity was measured. The linear response of the Bragg wavelength shift was observed in all experiments. Temperature compensation reference sensor method was examined.

Citation Download Citation

P. Chojnowski and K. P. Jędrzejewski "Strain and temperature sensor applications of fiber Bragg gratings", Proc. SPIE 6347, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2006, 63470W (12 October 2006); https://doi.org/10.1117/12.714878

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