0.3% energy stability, 100-millijoule-class, Ti:sapphire chirped-pulse eight-pass amplification system.
0.3% energy stability, 100-millijoule-class, Ti:sapphire chirped-pulse eight-pass amplification system.
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DOI：
10.1364/oe.16.014875
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发表时间：
2008-09
期刊：
影响因子：
3.8
通讯作者：
S. Tokita;M. Hashida;S. Masuno;S. Namba;S. Sakabe
中科院分区：
文献类型：
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作者：
S. Tokita;M. Hashida;S. Masuno;S. Namba;S. Sakabe
采用无源稳频技术，实现了100 mJ级啁啾脉冲放大系统中两级多程钛宝石放大器（一个四程前置放大器和一个四程功率放大器）的高稳定工作。通过优化两个放大器的泵浦能量比和第二功率放大器中人为插入的光损耗，获得了0.3%的脉冲能量均方根波动，比泵浦激光的均方根波动低5倍。据我们所知，这是100 mJ级钛宝石放大器获得的最低脉冲间波动。
Highly stable operation of a two-stage multipass Ti:sapphire amplifier (a four-pass pre-amplifier and a four-pass power amplifier) for a 100-mJ-class chirped-pulse amplification system has been demonstrated by passive stabilization. By optimizing the ratio of pump energies to the two amplifiers and the optical losses artificially inserted into the second power amplifier, a root-mean-square fluctuation in pulse energy of 0.3% was achieved, which was 5 times lower than that of the pump laser. This is the lowest pulse-to-pulse fluctuation, to the best of our knowledge, obtained by the 100-mJ-class Ti:sapphire amplifiers.