Steady-state operating characteristics of the femtosecond Ti: Sapphire lasers

The steady-state characteristics of the femtosecond Ti: sapphire lasers are discussed with the help of the mode-locked equation derived by us. The characteristics are both valuable in the research of the mode-locking mechanism and guidable to optimized design of the cavity configuration. The optimum parameters of the cavity configuration are reported. With the optimum arrangement, the self-mode-locked Ti: sapphire lasers produces pulses as short as 60fs, and for the pump power of 4W, the average output power can exceed 300mW. The pump power threshold for CW laser oscillation is 1W, and for self-mode-locked oscillation is about 3W.