We investigate dynamical instabilities arising from optical feedback, optical injection or mode coupling in lasers. The carrier dynamics in the gain material (e.g. semiconductor nanostructures) plays a central role. Another research topic concerns the extent to which these optical systems can be used for hardware-based machine learning. We use numerical methods to solve coupled differential equations as well as analytical methods of nonlinear dynamics for bifurcation analysis.
Invited conference papers
- WIAS Laser Workshop 7/3-5/23, https://www.wias-berlin.de/workshops/NDSL23/
- Athens Workshop July 13-14 , title "Readout and timescale engineering in time-multiplexed reservoir computing" https://neoterich2020.eu/2023/03/01/2nd-workshop-on-neuromorphic-photonics-and-applications/
2nd Workshop on "Neuromorphic photonics and applications", University of West Attica, July 13-14, 2023 https://rncp.eu/workshop/, Title: "Readout and timescale engineering in time-multiplexed reservoir computing"IEEE Workshop on Complexity in Engineering (COMPENG), Florence (virtual), Italy 18/07/22 - 20/07/22 -Title: Delay-based Reservoir Computing: Role of Timescales and Memory for Optimizing PerformanceEmerging Topics in Artificial Intelligence (ETAI), San Diego, US 21-25/08/2022 - Title: Photonic reservoir computing with non-linear memory cells: Interplay between topology, delay and delayed input
DPG Tagung (SKM Meeting), Regensburg, Germany, 4-9/09/2022 - Title: Photonic Reservoir Computing: Analytic insights and possibilities for optimization
- Rank Prize Fund Symposium on 'Neuromorphic Photonics' (6-9 February 2023),https:// www.rankprize.org/symposia/neuromorphic-photonics/- Title: Delay-based Photonic Reservoir Computing : Improving performance via the delay architecture
Köster, F.; Patel, D.; Wikner, A.; Jaurigue, L.; Lüdge, K.. Data-informed reservoir computing for efficient time-series prediction. In: Chaos, 33, Issue 7, 2023
Meinecke, S.; Köster, F.; Christiansen, D.; Lüdge, K.; Knorr, A.; Selig, M. Data-driven forecasting of nonequilibrium solid-state dynamics In: Phys. Rev. B 107, 184306, 2023
Roos, A.; Meinecke, S.; Lüdge, K. Spontaneous emission noise resilience of coupled nanolasers, In: Front. Photon. sec. nonlinear optics, 4, 2023, Messner, Leon; Robertson, Elizabeth; Esguerra, Luisa; Lüdge, Kathy; Wolters, Janik. Multiplexed random-access optical memory in warm cesium vapor. In: Optics express, ISSN 1094-4087, vol. 31 (2023), 6, pp. 10150-10158 Hülser, Tobias; Köster, Felix; Lüdge, Kathy; Jaurigue, LinaDeriving task-specific performance from the information processing capacity of a reservoir computer. In: Nanophotonics, ISSN 2192-8614, vol. 12 (2023), 5, pp. 937-947.
The Department of Theoretical Physics 2 offers courses in the framework of the course Technical Physics. This concerns the three Bachelor modules:
Theoretical Physics 1 Theoretical Physics 2 Theoretical Physics 3
as well as the Master modules:
Theoretical Physics, Numerics and Simulation Module Physics of Complex Systems.