Author: Xiang, D.
Paper Title Page
TUPEA033 Proposals for Chirped Pulse Amplification in HGHG and CHG at SDUV-FEL 1217
 
  • C. Feng, L. Shen, D. Wang, D. Xiang, M. Zhang, Z.T. Zhao
    SINAP, Shanghai, People's Republic of China
 
  In this paper, a proposal to generate intense ultra-short free-electron laser (FEL) pulses at Shanghai deep ultraviolet FEL (SDUV-FEL) by combining the chirped pulse amplification (CPA) technique with the high-gain harmonic generation (HGHG) technique is presented. In this proposal, a frequency chirped seed pulse obtained by stretching an ultra-short laser pulse is first used to create frequency-chirped bunching at the laser harmonics in an electron beam; then the frequency chirped harmonic radiation is amplified by an energy chirped electron beam; finally the output radiation pulse which inherits the properties of the seed pulse is compressed to provide an ultra-intense ultra-short radiation pulse. The feasibility and performance of this CPA-HGHG scheme are studied with start-to-end simulations using the parameters of the SDUV-FEL.