Title :
The fiber optic Sagnac interferometer and its sensing application
Author :
Yuanhong Yang;Lin Lu;Fuling Yang;Yuxuan Chen;Wei Jin
Author_Institution :
The Department of Opto-electronics Engineering, School of Instrumentation Science and Opto-electronics, Engineering, Beihang University, Beijing, China
Abstract :
The fiber optic Sagnac interferometer which comprise of a broadband source, a fiber optic coupler and special sensing fiber has great application potentiality. The characteristic of output spectrum was investigated and high precision polarization maintaining fiber (PMF) beat-length measurement was achieved. Hydrogen concentration and pressure sensor with PM photonic crystal fiber was demonstrated. A spectrum interrogation methods based on absolution phase interrogation were proposed.
Keywords :
"Sagnac interferometers","Temperature sensors","Temperature measurement","Optical fibers","Optical interferometry","Wavelength measurement"
Conference_Titel :
Optoelectronics Global Conference (OGC), 2015
Print_ISBN :
978-1-4673-7731-7
DOI :
10.1109/OGC.2015.7336845
