Inst Laser Technol, Suita, Osaka 5650871, Japan
; Chinese Acad Sci, Inst High Energy Phys, Beijing 100080, Peoples R China
Investigation on SASE experimental demonstration on BFEL facility is presented in this paper. Both linear theory and simulation method are used in order to get useful results for guiding the future experiments. The requirements on electron beam and long wiggler are proposed and the possibility of realization is explored.