Fs level laser-to-RF synchronization at REGAE

被引：1

作者：

Titberidze, M. ^{[1
]}

Felber, M. ^{[1
]}

Lamb, T. ^{[1
]}

Loch, R. ^{[2
]}

Sydlo, C. ^{[1
]}

Schlarb, H. ^{[1
]}

机构：

[1] DESY, Notkestr 85, D-22607 Hamburg, Germany

[2] Max Planck Inst Struct & Dynam Matter, Luruper Chaussee 149, D-22761 Hamburg, Germany

来源：

8TH INTERNATIONAL PARTICLE ACCELERATOR CONFERENCE (IPAC 2017) | 2017年 / 874卷

关键词：

D O I：

10.1088/1742-6596/874/1/012085

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Relativistic Electron Gun for Atomic Exploration (REGAE) is a unique linear accelerator capable of producing ultrashort (similar to 10 fs) electron bunches for studying fast processes in matter by means of ultrafast electron diffraction (UED) experiments. Additionally, REGAE is suitable for upcoming external injection experiments for laser wakefield acceleration (LWFA). In order to carry out both mentioned experiments, it is crucial to achieve fs level stability in terms of laser-to-RF synchronization. In this paper we present an advanced laser-to-RF synchronization scheme based on integrated Mach-Zehnder Modulator (MZM). The setup demonstrated the Titanium Sapphire photoinjector laser synchronization with 11 fs (rms) precision in the bandwidth up to 100 kHz. Long term timing drift measurements showed unprecedented peak-to-peak stability of 31 fs (7 fs rms) over 43 hours of measurement time. In addition, AM-PM coefficient of the MZM based laser-to-RF synchronization setup has been evaluated and showed a factor of 10 improved performance compared to conventional direct conversion based laser synchronization setup.

引用

页数：7

共 18 条

[1]

Felber M., 2012, P 3 INT PART ACC C N, P2624

[2] Generation of sub-fs electron beams at few-MeV energies [J].