Fourier Analysis of Quasi-phase Matching Devices for WDM

Since the introduction of wavelength division multiplexing system, the capacity of the optical fibers to carry data was immensely increased. High speed and efficient data transfer thence made possible. Further, the use of quasi-phase matching devices enables the authors to achieve wavelength division multiplexing with negligible inter symbol interference and cross talk. In this study, they present a theoretical model using a Fourier transform to analyze the spectral response of the periodic and aperiodic QPM devices.