Uniform Fiber Bragg Grating FBG as a Filter

Abstract

This project demonstrates the simulation of the uniform fiber Bragg grating component in OptiSystem as a filter. This project has one project layouts. In the layout, a white light source is used. Since the frequency response of the FBG has very narrow pass band, it can be used as a narrow band filter. At 1550 nm wavelength a band width as narrow as 0.2 - 0.3nm can be achieved very easily. If a broad band or multi-wavelength signal is fed to the FBG, selectively a wavelength is reflected back without affecting the propagation of other wavelengths. Firstly, this project will state a theory on fabrication, structure, advantage and disadvantages, applications of optical fiber and then the simulation of the uniform FBG as a filter will be carried out using OptiSystem.