Thrill WP5 ML Workshop

Europe/Berlin
106/255 - Hörsaal (HZDR)

106/255 - Hörsaal

HZDR

Bautzner Landstraße 400, 01328 Dresden
Jeffrey Kelling (HZDR), Patrick Audebert (Ecole Polytechnique)
Description
This is the kickoff workshop for Thrill WP5.4 -- machine learning (ML) model for laser stabilization. During this workshop, we want to discuss the preferred targets, like beam pointing or spectral properties, which have impact on how experiments are conducted at our partner facilities and invite partners from all Thrill WPs to participate in this discussion. In order to define a common goal and coordinate forces, the scope of potential contributions ML can make will be presented alongside a review of past outcomes within the laser community. As ML methods require continuous access data to both be developed and employed, data acquisition and management at partner facilities at ELI, GSI, HZDR, LULI, Amplitude and X-FEL will be presented and discussed to define future directions.
Registration
Registration
Participants
  • Alexander Saevert
  • Birgit Ploetzeneder
  • Daniel Albach
  • Davorin Peceli
  • Hans-Peter Schlenvoigt
  • Jeffrey Kelling
  • Klaus Knöfel
  • Loïc MEIGNIEN
  • Michael Bussmann
  • Oliver Knodel
  • Ulrich Schramm
  • Vincent Bagnoud
  • +4
  • Tuesday 27 February
    • 13:00 13:30
      General: Opening
      Conveners: Jeffrey Kelling (HZDR), Patrick Audebert (Ecole Polytechnique)
      • 13:00
        Welcome 10m
        Speakers: Jeffrey Kelling (HZDR), Patrick Audebert (Ecole Polytechnique)
      • 13:10
        WP5 Keynote 20m
        Speaker: Vincent Bagnoud
    • 13:30 14:00
      ML: Introduction and Review

      Welcome, overview of challenges for high-power lasers, review ML-for-lasers

      Convener: Patrick Audebert (Ecole Polytechnique)
      • 13:35
        Machine Learning in Laser System Optimization 20m
        Speaker: Jeffrey Kelling (HZDR)
    • 14:00 14:15
      Coffee
    • 14:15 15:50
      Data: Operations Data and Challenges at Large Laser Facilities I
      Convener: Vincent Bagnoud (GSI)
      • 14:15
        High energy lasers & AI 20m
        Speakers: Loïc Meignien (CNRS-LULI), Patrick Audebert (Ecole Polytechnique)
      • 14:45
        What it really means to support a (cross-continental) ML optimization loop for a user 20m
        Speaker: Birgit Ploetzeneder (ELI Beamlines)
      • 15:10
        Optimization of High-Power Laser Pulse Temporal Shape 10m

        We study the optimization of high-power laser pulse temporal shape to obtain the shortest possible pulse
        duration by employing a control feedback loop between a pulse shaper and pulse duration measurements instrument.
        Performance of five optimization algorithms were explored - the Differential Evolution algorithm, the Nelder-Mead
        algorithm, and three hybridization approaches of Differential Evolution (DE), Bayesian optimization (BO) and Nelder-
        Mead (NM) algorithms. The hybrid algorithms perform the exploration with the DE or BO algorithm and the
        exploitation with the NM algorithm. Algorithms were tested on a semi-physical model of the actual laser based on
        linear and nonlinear phase accumulation. We find that the hybridization of the algorithms yields better overall results.

        Speakers: Davorin Peceli (ELI Beamlines), Ishraq Md Anjum (University of Maryland Baltimore County)
      • 15:30
        System Data Acquisition & Management at PHELIX 20m
        Speaker: Jonas Benjamin Ohland (GSI)
    • 15:50 16:15
      Discussions: Stability Challenges I
    • 16:15 17:35
      Data: Operations Data and Challenges at Large Laser Facilities II
      Convener: Patrick Audebert (Ecole Polytechnique)
      • 16:15
        Lasers at the Institute of Radiation Physics @ HZDR 20m
        Speaker: Ulrich Schramm
      • 16:45
        The Draco laser and it‘s data for ML / AI 20m
        Speaker: Stefan Bock (HZDR)
      • 17:15
        Predictive Beam Steering and Machine Learning at JETi200 20m
        Speaker: Alexander Saevert (Helmholtz Institut Jena)
    • 17:35 18:00
      Discussions: Stability Challenges II
    • 18:00 19:55
      Coffee: Get-together and Discussions
      Conveners: Jeffrey Kelling (HZDR), Patrick Audebert (Ecole Polytechnique)
  • Wednesday 28 February
    • 09:00 09:30
      General: Experimental Needs
      Convener: Jeffrey Kelling (HZDR)
    • 09:30 09:55
      Data: Data Acisition III
      • 09:30
        Data Acisition at HIBEF's Relax laser 15m
        Speaker: Toma Toncian (HZDR)
    • 09:55 10:00
      General: Group Photo
    • 10:00 10:10
      Coffee
    • 10:10 11:10
      Data: Perspectives of Data collection and Exchange
      Convener: Jeffrey Kelling (HZDR)
    • 11:10 12:35
      Lab Visit: Draco and Penelope Lasers
      Convener: Stefan Bock (HZDR)
    • 12:35 13:00
      General: Summary and Closing
      Conveners: Jeffrey Kelling (HZDR), Patrick Audebert (Ecole Polytechnique), Thomas E. Cowan (HZDR), Vincent Bagnoud (GSI)