Secondary Bragg grating based fiber sensors for the  application in high temperature environment

Yang Ran; Fu-Rong Feng; Long Jin; Bai-Ou Guan

doi:10.1117/12.2302806

14 May 2018 Secondary Bragg grating based fiber sensors for the application in high temperature environment

Yang Ran, Fu-Rong Feng, Long Jin, Bai-Ou Guan

Proceedings Volume 10654, Fiber Optic Sensors and Applications XV; 106540A (2018) https://doi.org/10.1117/12.2302806
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, FL, United States

Abstract

As one of the most proven fiber optic sensors, novel fiber Bragg gratings are continually investigated to extend their roles in extreme environments. In this paper, a newly found “secondary Bragg grating” (SBG) is proposed. The presence of SBG occurs in the case of the type-IIa Bragg grating inscribed in small active fibers, where an additional resonance appears at the shorter wavelength. The SBG provides a variety of interesting characteristics, such as the dip integration, high temperature resistance and high reflectivity, showing promising potential in high temperature sensing.

Conference Presentation

Citation Download Citation

Yang Ran, Fu-Rong Feng, Long Jin, and Bai-Ou Guan "Secondary Bragg grating based fiber sensors for the application in high temperature environment", Proc. SPIE 10654, Fiber Optic Sensors and Applications XV, 106540A (14 May 2018); https://doi.org/10.1117/12.2302806

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