10 kHz 54 W Ti:sapphire regenerative amplifier as a pumping laser of a laser-plasma x-ray source
10 kHz 54 W Ti:sapphire regenerative amplifier as a pumping laser of a laser-plasma x-ray source
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DOI：
10.1117/12.803939
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发表时间：
2007-09
期刊：
影响因子：
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通讯作者：
I. Matsushima;H. Yashiro;T. Tomie
中科院分区：
文献类型：
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作者：
I. Matsushima;H. Yashiro;T. Tomie
我们正在开发一种多kHz重复率高平均功率钛蓝宝石再生放大器，作为激光等离子体X射线源的泵浦激光器。通过优化设计的带有低温冷却激光棒的环形谐振器，当由 180 W 绿光激光器以 10 kHz 重复频率泵浦时，压缩前的平均输出功率达到 54 W。输出光束的聚焦性优于两倍的衍射极限，并可压缩至82 fs。讨论了扩展到更高输出功率的可能性。
We are developing a multi-kHz repetition rate high-average power Ti:sapphire regenerative amplifier as a pumping laser of a laser-plasma X-ray source. With an optimally designed ring resonator with a cryogenically-cooled laser rod, the average output power of 54 W before compression was achieved when pumped by a 180-W green laser at 10 kHz repetition rate. The focusability of the output beam was better than two times of the diffraction limit and can be compressed to 82 fs. Possibility of scaling to higher output power is discussed.