Experimental realization of integrated photonic reservoir computing for nonlinear fiber distortion compensation

Low-Loss Photonic Reservoir Computing with Multimode Photonic Integrated Circuits

We present a numerical study of a passive integrated photonics reservoir computing platform based on multimodal Y-junctions. We propose a novel design of this junction where the level of adiabaticity is carefully tailored to capture the radiation loss in higher-order modes, while at the same time providing additional mode mixing that increases the richness of the reservoir dynamics. With this d...

Wideband Dispersion Compensation in Hexagonal Lattice Photonic Crystal Fiber

In this paper, a new structure is provided for the dispersion compensating photonic crystal fibers in order to broaden the chromatic dispersion and increase the dispersion compensating capability in a wide wavelength range. In the structure, putting elliptical holes in the first ring of the inner core clad of a dispersion compensating fiber of the hexagonal lattice, increases the wavelength ran...

Higher Order Adaptive Filter Based Predistortion for Nonlinear Distortion Compensation of Radio over Fiber Links

 The biggest limitation of Radio over Fiber (ROF) links in a wireless network is its limited dynamic range due to ‘Non Linear Distortions’ (NLD). In this paper a higher order adaptive filter based modeling and predistortion scheme is proposed to compensate this NLD. The filter is adapted from the distortions of vectormodulated symbols, so that no in-depth knowledge of physical link parameters ...

Identification and Compensation of Nonlinear Distortion

Digital Compensation of Nonlinear Distortion in Loudspeakers

Practical loudspeakers are nonlinear transducers, i.e. the acoustic output is not a linear representation of the electrical input signal. In this paper two loudspeakers are considered; a loudspeaker for reproduction of low frequencies (woofer) and a horn loudspeaker. Instead of improving the behavior of the two transducers by constructional means we apply a feedforward nonlinear digital inverse...