Author: Feng, L.
Paper Title Page
Division-of-amplitude Photopolarimeter for Single-shot Measurement of Free Electron Laser at SDUV-FEL  
  • L. Feng, H.X. Deng, T. Zhang
    SINAP, Shanghai, People's Republic of China
  Division-of-amplitude photopolarimeter (DOAP) is generally used to measure the polarization-state of the pulse beam, which divides the incident beam into four separate beams, and all four Stokes parameters can be measured simultaneously. In this paper, a home-made DOAP instrument is applied to the experiment of polarization control at Shanghai deep ultraviolet FEL test facility. The results indicate that this instrument response fast and accurately while the polarization-state of the coherent FEL are switched, and it is well verify the cross-planar undulator technique experimentally.  
THP095 Evolvement of the Laser and Synchronization System for the Shanghai DUV-FEL Test Facility 960
  • B. Liu, L. Feng, T. Lan, X.Q. Liu, D. Wang, X.T. Wang, W.Y. Zhang, S.P. Zhong
    SINAP, Shanghai, People's Republic of China
  Funding: supported by the National Natural Science Foundation of China (Grant No. 11175241)
Many attractive experiments including HGHG, EEHG, cascaded HGHG, chirped pulse amplification etc. are carried out or planned on the Shanghai Deep Ultra-Violet Free Electron Laser test facility. These experiments are all utilizing a laser as seed, and need precise synchronization between the electron beam and the laser pulse. We will describe the history and current status of the seeding and synchronization scheme for the SDUV-FEL together with some related experiment results in this paper.