Peking University’s DC-SRF-II photoinjector drive laser system

Liwen Feng; Tianyi Wang; Haoyan Jia; Zhongqi Liu; Hang Xu; Shenlin Huang; Kexin Liu

doi:10.11884/HPLPB202234.210343

Journals >High Power Laser and Particle Beams >Volume 34 >Issue 10 >Page 104016 > Article

High Power Laser and Particle Beams
Vol. 34, Issue 10, 104016 (2022)

Peking University’s DC-SRF-II photoinjector drive laser system

Liwen Feng¹, Tianyi Wang¹, Haoyan Jia¹, Zhongqi Liu¹, Hang Xu^2、3, Shenlin Huang¹, and Kexin Liu¹

Author Affiliations

¹State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

²Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

³School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

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DOI: 10.11884/HPLPB202234.210343 Cite this Article

Liwen Feng, Tianyi Wang, Haoyan Jia, Zhongqi Liu, Hang Xu, Shenlin Huang, Kexin Liu. Peking University’s DC-SRF-II photoinjector drive laser system[J]. High Power Laser and Particle Beams, 2022, 34(10): 104016 Copy Citation Text

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Abstract

A new drive laser system was developed to meet the requirement of DC-SRF-II photoinjector at Peking University. This modular drive laser system can operate from single pulse to 81.25 MHz CW mode, with green light output power 1.41 W @ 1 MHz. Longitudinal and transverse shaping were also implemented in the system, resulting in near flat-top 18 ps laser pulse with cut-Gaussian transverse profile. The stability measurement shows that the system output power stability is 1.8% RMS, and the pointing stability is less than 1 μrad.

Keywords

laser shaping laser transport photocathode photocathode drive laser

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