Apodized and chirped fiber Bragg gratings for optical communication systems: Influence of grating profile on spectral reflectance

摘要

In this paper, the simulations of the reflectance of the apodized and chirped Fiber Bragg gratings (FBGs) are presented. The reflectances of apodized FBGs with different modulations of the refractive index were simulated. The results show that reflected light is concentrated to the main reflectance line with negligible sidelobes. Simulations of linearly chirped FBGs show that sharp reflectance lines can be achieved which makes this kind of FBGs suitable candidates for wavelength multiplexing/demultiplexing.