Analysis of shift in Bragg wavelength of fiber Bragg gratings with finite cladding radius

摘要

Based on the three-layer model for single mode fiber Bragg grating (FBG). We simulated the Bragg wavelength shift of FBG with different finite thickness of cladding. Comparisons were performed on a variety of core radius. The results show that the change of Bragg wavelength is relatively small, even though the case of simulation parameters is impossible to realize in experiment.