13.–16. Jan. 2025
Department of Physics, University of Oxford
Europe/London Zeitzone

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Automated Alignment of Beam Lines using Reinforcement Learning

16.01.2025, 15:00
30m
Department of Physics, University of Oxford

Department of Physics, University of Oxford

Parks Rd, Oxford OX1 3PU, UK
Plenary Talk Plenary

Sprecher

Dr. Marko von der Leyen (University of Oxford)

Beschreibung

Laser beam alignment is a non-trivial and time-consuming problem native to a multitude of present-day experiments. We introduce a reinforcement learning-based laser beam alignment system that learns to align a Mach-Zehnder interferometer and an off-axis parabolic mirror with live optimization correcting for beam drift or externally introduced mirror misalignment. The algorithm manages to find a technique for recovering a beam lost from its field of vision. This technique allows for the use of open-loop motors as the agent is agnostic of the orientation of the component it controls.
We will explore different algorithms such as DQNs, Actor-Critic, SARSA and show their respective advantages and introduce a new way of simulating beam propagation to train focal spot optimisation.

Hauptautor

Dr. Marko von der Leyen (University of Oxford)

Co-Autoren

Dr. Ben Spiers (Central Laser Facility) Prof. Peter Norreys (University of Oxford) Dr. Ramy Aboushelbaya (University of Oxford)

Präsentationsmaterialien

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