以染料激光为代表的第一代飞秒激光始于1981年,使人类第一次在微观世界中进入到飞秒时代。但是,由染料激光器输出功率较低和运转的不稳定性,使得超快领域的研究受到极大限制。1991年,以掺钛篮宝石固体激光器为代表的第二代飞秒激光诞生,它所具有的材料稳定性和运转的可靠性,使染料飞秒激光器濒于淘汰。特別是在超强方面,通过啁啾脉冲放大 The first generation of femtosecond laser, represented by dye laser, started in 1981, making human beings enter the femtosecond era for the first time in the micro-world. However, the low output power and instability of the dye laser make the field of ultrafast research limited greatly. In 1991, the second-generation femtosecond laser, which is represented by titanium-doped gem solid-state lasers, has the material stability and reliability of operation, making the dye femtosecond laser come to the verge of elimination. Especially in the super-strong, amplified by chirped pulses