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TY - CONF AU - Feng, L. AU - Li, C.L. AU - Liu, B. AU - Lu, X. AU - Wang, J.G. AU - Wang, X.T. AU - Zhang, W.Y. ED - Liu, Lin ED - Byrd, John M. ED - Neuenschwander, Regis T. ED - Picoreti, Renan ED - Schaa, Volker R. W. TI - Drive Laser System for Shanghai Soft X-Ray Free Electron Laser J2 - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021 CY - Campinas, SP, Brazil T2 - International Particle Accelerator Conference T3 - 12 LA - english AB - In this paper, we introduce the design and layout of the drive laser of Shanghai Soft X-ray Free Electron Laser (SXFEL). It is known that the temporal and spatial distribution of the drive laser is crucial for high-quality electron beams. The drive laser provides the laser pulse of 266nm wavelength and 8ps pulse duration for the photocathode, as well as 400nm wavelength, 2-20ps tunable pulse duration for the laser heater. For this purpose, there are mainly four parts in such system, including a third-harmonic generation device, pulse stretcher, image transmitted system, and laser optical module for laser heater. Finally, the measured results of the electron beam under this drive laser system are presented and discussed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4403 EP - 4405 KW - laser KW - FEL KW - electron KW - cathode KW - free-electron-laser DA - 2021/08 PY - 2021 SN - 2673-5490 SN - 978-3-95450-214-1 DO - doi:10.18429/JACoW-IPAC2021-THPAB313 UR - https://jacow.org/ipac2021/papers/thpab313.pdf ER -