Paper 14092-19
Paper 14092-19
Dynamical Aspects of Physical Reservoir Computing with Photonic Devices (Invited Paper)
14 April 2026 • 10:50 - 11:20 CEST | Churchill (Niveau/Level 1)
Abstract
Reservoir computing (RC) with physical devices offers an energy efficient method for analog computing. It is specifically suited for tasks where nonlinearity as well as memory is needed. Here we investigate time series forecasting tasks using semiconductor lasers with optical self-feedback. If the data is injected and detected within a time-multiplexed setup, one physical node is sufficient. Due to the delay, the laser is able to emit complex emission patterns in time that correspond to dynamics in a high dimensional phase space. We discuss that by tuning internal system timescales, feedback-delay, and input-schemes, the dynamic response of the laser can be changed in a controlled manner to meet the specific RC task requirements. Further, non-rational ratios between input clock cycle and delay lead to more complex internal coupling topologies and improve the short term memory of the RC setup.
Presenter
Kathy Lüdge
Technische Univ. Ilmenau (Germany)
Prof. Kathy Lüdge is a full professor at the Technische Universität Ilmenau (TU Ilmenau) since 2021, where she is leading the group Computational Physics at the Physics department. From 2016 to 2021, she was a full professor at TU Berlin and headed the group Nonlinear Laser Dynamics. She received her doctorate from TU Berlin in 2003 at the Institute of Solid State Physics in the field of experimental Surface Science. She completed her habilitation (venia legendi) on nonlinear carrier dynamics in quantum-dot lasers in 2011 at the Institute of Theoretical Physics at TU Berlin. For her pioneering works on QD laser modelling she received the Karl Scheel Prize of the Physikalische Gesellschaft zu Berlin in 2012. She won a Humboldt Fellowship (Feodor-Lynen) to spend a year at the Mathematics Department at the University of Auckland (New Zealand) in 2016, was a DAAD supported visiting scientist at the University of Minnesota (USA) in 2002.