Phase derivative thermo-spatiogram for distributed temperature sensing based on chirped grating-Michelson Interferometer
Document Type
Article
Publication Date
1-1-2018
Abstract
A novel thermometric measurement based on chirped fiber Bragg grating (CFBG) and Michelson Interferometer is proposed. The interrogation technique is based on the linear relation between the temperature and the phase derivative function of the grating, which is determined through Fourier transformation of the output spectrum. The Michelson interferometer configuration offers the flexibility in adjusting the position of coupling coefficient curve in the spatiogram, enabling the interrogation to be done at a shorter optical spectrum record length which can reduce the interrogation time and computation load.
Keywords
Thermo-spatiogram, Chirped fiber Bragg grating, Michelson interferometer
Divisions
fac_med,PHYSICS
Funders
PRGS (PR002-2017A), FRGS (FP006-2014B),National Natural Science Foundation of China (61405160),ShaanXi Young Scientist Star Program (2016KJXX-04)
Publication Title
Sensors and Actuators A: Physical
Volume
278
Publisher
Elsevier