论文部分内容阅读
在数太瓦钛宝石啁啾脉冲放大系统中(极光Ⅱ升级装置),对多脉冲序列的放大过程进行了详细的实验研究,获得了多脉冲序列的放大输出.每一个放大脉冲串中包含有19个独立的飞秒单脉冲,其相邻间隔为14.8 ns,对应的重复频率为67.5 MHz.脉冲串的总能量约为122 mJ,各单脉冲能量从20 mJ指数衰减至0.5 mJ,脉宽约为60fs,对应的峰值功率约为10~(11)—10~(10)W.这种脉冲序列在产生长寿命激光等离子体、激光微加工等方面有重要应用前景.
In a few watts of titanium sapphire chirped pulse amplification system (Aurora Ⅱ upgrade device), multi-pulse sequence amplification process carried out a detailed experimental study, obtained multi-pulse sequence amplification output. Each amplified pulse train contains 19 independent femtosecond single pulses with adjacent intervals of 14.8 ns and a corresponding repetition frequency of 67.5 MHz.The total energy of the bursts is about 122 mJ and the energy per pulse is exponentially decayed from 20 mJ to 0.5 mJ with a pulse width About 60fs, corresponding to the peak power of about 10 ~ (11) -10 ~ (10) W. This pulse sequence in the production of long-life laser plasma, laser micro-machining and other aspects of the important application prospects.