1 Physics Section, Medical Technology Department, Qiqihar Medical University, Qiqihar, Heilongjiang, 161006, China;2 Institute of Physics and Electronic Engineering, Harbin Normal University, Harbin, Heilongjiang, 150025, China
Abstract:
This paper analyzes the properties of reflected polarization dependent loss of apodized fiber Bragg gratings with temperature effective. We simulates reflected spectrum and polarization dependent loss of the apodized fiber Bragg gratings. The reflected spectrum and polarization dependent loss are measured under different temperatures. The analysis results show that reflected polarization dependent loss presents two peaks which shift an equal proportion to long wavelength with temperature increasing and have very good stability so we propose an idea that use polarization dependent loss as temperature sensor measurement parameters. The results show that the accuracy of measurement can be increased almost by one order of magnitude.