Full characterization of long periodic superstructure fibre Bragg gratings in multichannel devices

Abstract

The characterization of the amplitude and delay response of superstructure fiber Bragg gratings was discussed. The periodic superstructure fiber Bragg gratings are characterized by a periodic variation of the grating parameters resulting in a multiband spectra response arising from every Fourier component of the superstructure. The modeling of the superstructure using the coupling-mode theory and the Runge-Kutta method for solving Riccati equations is discussed.