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| URL | https://doi.org/10.18429/JACoW-IBIC2025-WEPCO40 |
|---|---|
| Title | Fibre-Coupled Oscillator-Driven Electro-Optic Spectral Interferometry as a Longitudinal Bunch Profile Monitor |
| Authors |
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| Abstract | Electro-optic (EO) diagnostics offer non-destructive methods to resolve the longitudinal charge profile of highly relativistic bunches without the need for complex calibrations or ambiguous phase recovery techniques. The most common technique, EO spectral decoding (EOSD), is favoured for its simplicity, reliability, and straightforward output interpretation, however its resolution is constrained to the geometric mean of the transform-limited and chirped probe laser durations. We have introduced a new technique utilising spectral interferometry (EOSI), which overcomes this limitation by adding a single optical element to an EOSD setup, with successful measurements shown previously on the CLARA accelerator at Daresbury Laboratory. To further explore this technique, we have performed EOSI on the CLEAR accelerator at CERN (160-200 MeV, 15-150 pC and 0.2-1.5 ps RMS) utilising a nJ oscillator and optical fibre-coupled transport. Our results highlight the potential for low power, turn-key operation and flexible integration of EOSI systems for single-shot ultrashort bunch length and arrival time monitoring. |
| Paper | download: WEPCO40.pdf |
| Cite | BibTeX, LaTeX, Text/Word, RIS, EndNote |
| Conference | 14th International Beam Instrumentation Conference |
| Series | |
| Location | Liverpool, UK |
| Date | 07-11 Sep 2025 |
| Publisher | JACoW Publishing, Geneva, Switzerland |
| Editorial Board | Narender Kumar (Editor-in-Chief) - UoL/CI, UK Robert Apsimon - CI, UK Thankonwat Chanwattana - SLRI, Thailand Zhichu Chen - SARI, China Eunhoon Im - IBS, Korea Jangwon Kwon - IBS, Korea Milaan Patel - UoL/CI, UK Volker RW Schaa - GSI, Germany Jana Thomson -TRIUMF, Canada Bradley Wilson, STFC, UK Hao Zhang, UoL/CI, UK |
| Online ISBN | 978-3-95450-262-2 |
| Online ISSN | 2673-5350 |
| Received | 03 September 2025 |
| Revised | 07 September 2025 |
| Accepted | 11 September 2025 |
| Issued | 20 January 2026 |
| DOI | 10.18429/JACoW-IBIC2025-WEPCO40 |
| Pages | 707-710 |
| Copyright | Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |