7–11 Sept 2025
Teaching Hub 502
Europe/London timezone

Compact electro-optical bunch length detector: from an expert device to an operator tool

WEPCO24
10 Sept 2025, 16:00
2h
Courtyard, Liverpool Guild of Students

Courtyard, Liverpool Guild of Students

Liverpool Guild of Students, University of Liverpool
Poster Presentation MC05: Longitudinal Diagnostics and Synchronization WEPCO

Speaker

Bernd Steffen (Deutsches Elektronen-Synchrotron DESY)

Description

Laser-based electro-optic detection (EOD) has been a valuable tool to measure the longitudinal electron bunch shape with sub-ps resolution for almost a decade, but it has always been a tool for expert use. Recently, the server and the user interface has been updated allow automated laser locking, time calibration and measurements to prepare for general operator use at the EuXFEL. It is currently prepared for EO Spectral Decoding measurements, but the implementation of advanced reconstruction algorithms (Diversity Enhanced EO Spectral Decoding, DEOS[*]) is ongoing. The paper presents details of the setup and the user interface as well as recent measurements.

Footnotes

[*] Phase Diversity Electro-optic Sampling: A new approach to single-shot terahertz waveform recording, E. Roussel et al., Light: Science &Applications, 11, 14 (2022)

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Author

Bernd Steffen (Deutsches Elektronen-Synchrotron DESY)

Co-authors

Dietrich Rothe (Deutsches Elektronen-Synchrotron DESY) Marie Kristin Czwalinna (Deutsches Elektronen-Synchrotron DESY) Tomasz Kozak (Deutsches Elektronen-Synchrotron DESY)

Presentation materials

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