Non-traditional method for the analysis of apodized fiber Bragg gratings

Summary form only given. The problem of filtering is becoming increasingly important to satisfy present-day requirements of broadband and long-haul fiber optics communication based on the wavelength division multiplexing (WDM). Fiber Bragg gratings serving as narrow-band filters successfully bring into play this function. The demands of contemporary fiber optics communication are directed to the substantial growth of the number of informative channels, i.e. to the dense wavelength division multiplexing (DWDM). Apodized fiber Bragg gratings are the best choice for this purpose. Apodization means that the amplitude of permittivity modulation varies along the length of the Bragg grating. By applying the non-traditional method a comparative analysis of uniform and nonuniform gratings with different apodization law has been performed.