We present experiments on reservoir computing (RC) using a network of vertical-cavity surface-emitting lasers (VCSELs) that we diffractively couple via an external cavity. Our optical reservoir computer consists of 24 physical VCSEL nodes. We evaluate the system's memory and solve the 2-bit XOR task and the 3-bit header recognition (HR) task with bit error ratios (BERs) below 1\,\% and the 2-bit digital-to-analog conversion (DAC) task with a root-mean-square error (RMSE) of 0.067.
Cite
@article{arxiv.2412.03206,
title = {Experimental reservoir computing with diffractively coupled VCSELs},
author = {Moritz Pflüger and Daniel Brunner and Tobias Heuser and James A. Lott and Stephan Reitzenstein and Ingo Fischer},
journal= {arXiv preprint arXiv:2412.03206},
year = {2024}
}