Biology and chemislry etal ln thi s dissertation , the theory of femto - second pulse laser amplifier system using tifsapphire crystal was discussed systematically and many methods were brought fonvard to resoive the probably existed problems in each part of the system base d on the achieved results , experimentai works has further developed 本文系統(tǒng)給出了以鈦寶石晶體做為增益介質和放大介質的飛秒激光脈沖放大系統(tǒng)理論,針對各部分可能出現(xiàn)的問題提出了相應的解決方法,并在此基礎上開展了部分實驗工作。