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20212025
most citedHigh Speed Photonic Neuromorphic Computing Using Recurrent Optical Spectrum Slicing Neural Networks

55 citations · 72 across the 11 of their papers we have counts for

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physics.optics2025

Recurrent Optical Spectrum Slicers as multi-λ processors for WDM optical equalization of IM/DD channels

Kostas Sozos, Francesco Da Ros, George Sarantoglou +2

We report recurrent optical spectrum slicers as multi-wavelength optical processors in dispersion impaired IM/DD transmission systems with the use of programmable photonics. We dem…

physics.optics2025

Integrated recurrent optical spectral slicer for equalization of 100-km C-band IM/DD transmission

I. Teofilovic, K. Sozos, H. Liu +10

A silicon-photonics recurrent spectral filter is designed, fabricated, and system tested to pro-vide optical pre-processing in a 32-GBd PAM-4 C-band transmission. Performance below…

physics.optics2025

Reconfigurable Integrated Photonic Chips as Dual-Purpose Neuromorphic Accelerators and Physical Unclonable Functions

George Sarantoglou, Francesco Da Ros, Kostas Sozos +2

In this work, we experimentally validate the dual use of a reconfigurable photonic integrated mesh as a neuromorphic accelerator, targeting signal equalization, and as a physical u…

physics.optics2025

Experimental Analysis of a Self-Coherent M-QAM Receiver by Means of Recurrent Optical Spectrum Slicing and Direct Detection

Kostas Sozos, Francesco Da Ros, Senior Member Optica +6

High order modulation formats constitute the most prominent way for increasing spectral efficiency in transmission systems. Coherent transceivers that support such higher order for…

physics.optics2024

Experimental Investigation of a Recurrent Optical Spectrum Slicing Receiver for Intensity Modulation/Direct Detection systems using Programmable Photonics

Kostas Sozos, Francesco Da Ros, Metodi P. Yankov +4

In this paper, we experimentally validate our previous numerical works in recurrent optical spectrum slicing (ROSS) accelerators for dispersion compensation in high-speed IM/DD lin…

physics.optics2024

Unconventional Computing based on Four Wave Mixing in Highly Nonlinear Waveguides

Kostas Sozos, Stavros Deligiannidis, Charis Mesaritakis +1

In this work we numerically analyze a photonic unconventional accelerator based on the four-wave mixing effect in highly nonlinear waveguides. The proposed scheme can act as a full…

physics.optics2021

Spatial Photonic Reservoir Computing based on Non-Linear Phase-to-Amplitude Conversion in Micro-Ring Resonators

Charis Mesaritakis, Kostas Sozos, Dimitris Dermanis +1

We present a photonic reservoir computing, relying on a non-linear phase-to-amplitude mapping process, able to classify in real-time multi-Gbaud time traces subject to transmission…