IBIC2023 - List of Authors (Labat, M.)

Paper	Title	Page
TUP008	Recording Series of Coherent Thz Pulse Shapes with Up to 88 MHz Repetition Rate at Soleil, Using Photonic Time-Stretch
	C. Szwaj, S. Bielawski PhLAM/CERLA, Villeneuve d’Ascq, France J.B. Brubach, M. Labat, L. Manceron, P. Roy SOLEIL, Gif-sur-Yvette, France C. Evain, M. Le Parquier, E. Roussel PhLAM/CERCLA, Villeneuve d’Ascq Cedex, France
	Funding: ANR/DFG ULTRASYNC, CEMPI LABEX, CPER Photonic for Society Recording THz signals in single-shot is required in various accelerator applications, including real-time studies of electron bunch shapes, and user-applications employing coherent THz synchrotron radiation. For this purpose, many accelerator facilities have implemented laser-based measurement systems known as electro-optic detection. This consists of ¿imprinting¿ the unknown terahertz waveform on a shot laser pulse, that is subsequently analyzed. Few years ago a new variant of this method, time-stretch electro-optic detection [1,2], has been introduced with the aim to cope with high repetition-rate machines. We present the current record in repetition rate (up to 88 MHz), that has been obtained at the AILES beamline of the SOLEIL facility. We also present the projects aiming at reaching long recording windows and/or high bandwidth [3] using time-stretch, as well as the expected fundamental trade-offs linked to the quest for high repetition rate. [1] E. Roussel et al., Scientific reports 5.1 (2015): 1-8. [2] S. Bielawski et al., Scientific reports 9.1 (2019): 10391. [3] E. Roussel et al., Light: Science & Applications 11.1 (2022): 14.
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WEP002	Study of Visible Synchrotron Radiation Monitor on SOLEIL Booster	331
	A. Moutardier, G. Cauchon, M. Chevrot, Z. Fan, N. Hubert, S. Kubsky, M. Labat, M. Thomasset SOLEIL, Gif-sur-Yvette, France
	In the scope of SOLEIL II, the booster must also be upgraded to reduce from 130 to 5~nm.rad the emittance of the beam delivered to the ring. Control of the emittance in the booster will become crucial to ensure the nominal performance of the storage ring injection. The SOLEIL I booster is already equipped with a Visible Synchrotron Radiation Monitor (MRSV). This equipment, made of an extraction mirror and a simple optical system, was originally planned to be used only for beam presence verification but has not been used routinely for operation since the commissioning in 2005. The control and acquisition systems had to be refreshed to be usable again and allow the beam size measurement along the booster energy ramp. The extraction mirror was replaced due to unexpected degradation leading to a second spot appearing on the camera. This paper traces back the MRSV upgrades from understanding the cause of mirror degradation until mirror replacement and the first proper beam visualisation, achieved at the beginning of 2023.
	Poster WEP002 [1.550 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP002
About •	Received ※ 04 September 2023 — Revised ※ 09 September 2023 — Accepted ※ 12 September 2023 — Issue date ※ 16 September 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

TUP008

Recording Series of Coherent Thz Pulse Shapes with Up to 88 MHz Repetition Rate at Soleil, Using Photonic Time-Stretch

C. Szwaj, S. Bielawski
PhLAM/CERLA, Villeneuve d’Ascq, France
J.B. Brubach, M. Labat, L. Manceron, P. Roy
SOLEIL, Gif-sur-Yvette, France
C. Evain, M. Le Parquier, E. Roussel
PhLAM/CERCLA, Villeneuve d’Ascq Cedex, France

Funding: ANR/DFG ULTRASYNC, CEMPI LABEX, CPER Photonic for Society
Recording THz signals in single-shot is required in various accelerator applications, including real-time studies of electron bunch shapes, and user-applications employing coherent THz synchrotron radiation. For this purpose, many accelerator facilities have implemented laser-based measurement systems known as electro-optic detection. This consists of ¿imprinting¿ the unknown terahertz waveform on a shot laser pulse, that is subsequently analyzed. Few years ago a new variant of this method, time-stretch electro-optic detection [1,2], has been introduced with the aim to cope with high repetition-rate machines. We present the current record in repetition rate (up to 88 MHz), that has been obtained at the AILES beamline of the SOLEIL facility. We also present the projects aiming at reaching long recording windows and/or high bandwidth [3] using time-stretch, as well as the expected fundamental trade-offs linked to the quest for high repetition rate.
[1] E. Roussel et al., Scientific reports 5.1 (2015): 1-8.
[2] S. Bielawski et al., Scientific reports 9.1 (2019): 10391.
[3] E. Roussel et al., Light: Science & Applications 11.1 (2022): 14.

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WEP002

Study of Visible Synchrotron Radiation Monitor on SOLEIL Booster

331

A. Moutardier, G. Cauchon, M. Chevrot, Z. Fan, N. Hubert, S. Kubsky, M. Labat, M. Thomasset
SOLEIL, Gif-sur-Yvette, France

In the scope of SOLEIL II, the booster must also be upgraded to reduce from 130 to 5~nm.rad the emittance of the beam delivered to the ring. Control of the emittance in the booster will become crucial to ensure the nominal performance of the storage ring injection. The SOLEIL I booster is already equipped with a Visible Synchrotron Radiation Monitor (MRSV). This equipment, made of an extraction mirror and a simple optical system, was originally planned to be used only for beam presence verification but has not been used routinely for operation since the commissioning in 2005. The control and acquisition systems had to be refreshed to be usable again and allow the beam size measurement along the booster energy ramp. The extraction mirror was replaced due to unexpected degradation leading to a second spot appearing on the camera. This paper traces back the MRSV upgrades from understanding the cause of mirror degradation until mirror replacement and the first proper beam visualisation, achieved at the beginning of 2023.

Poster WEP002 [1.550 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP002

About •

Received ※ 04 September 2023 — Revised ※ 09 September 2023 — Accepted ※ 12 September 2023 — Issue date ※ 16 September 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)