Exploring terabit wireless potential of Wavelength Division Multiplexing

Terabit wireless potential of Wavelength Division Multiplexing (WDM) is explored in this paper, through a novel detection algorithm over single-slit receiver. Different from current solutions that separates signals on different wavelengths by optical components (e.g. lens), our solution is based on simpler architecture and signal processing. The receiving signal is first passed through single-slit to be summation of a set of square-sinc functions, where each square-sinc corresponds to signal on one wavelength. Then, we apply a nonlinear differential operator on the received signal to convert it to a fractional function, where each square-sinc becomes a pole. By identifying the existence of each pole in parallel, we can detect signal on each wavelengths efficiently. Along with our numerical results, we demonstrate the possibility of terabit wireless by WDM and could be good start for future researches on ultra-high data rate communications.