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首页> 外文期刊>Optics Letters >High-repetition-rate chirped-pulse-amplification thin-disk laser system with joule-level pulse energy
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High-repetition-rate chirped-pulse-amplification thin-disk laser system with joule-level pulse energy

机译：具有焦耳级脉冲能量的高重复频率chi脉冲放大薄盘激光系统

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摘要

We are reporting on the development of a diode-pumped chirped-pulse-amplification (CPA) laser system based on Yb:YAG thin-disk technology with a repetition rate of 100 Hz and output pulse energy in the joule range. The focus lies with the first results of the preamplifier--a regenerative amplifier (RA) and a multi-pass amplifier (MP). The system consists of a front end including the CPA stretcher followed by an amplifier chain based on Yb:YAG thin-disk amplifiers and the CPA compressor. It is developed in the frame of our x-ray laser (XRL) program and fulfills all requirements for pumping a plasma-based XRL in grazing incidence pumping geometry. Of course it can also be used for other interesting applications. With the RA pulse energies of more than 165 mJ can be realized. At a repetition rate of 100 Hz a stability of 0.8percent (1sigma) over a period of more than 45 min has been measured. The optical-to-optical efficiency is 14percent. The following MP amplifier can increase the pulse energy to more than 300 mJ. A nearly bandwidth-limited recompression to less than 2 ps could be demonstrated.
机译：我们正在报告一种基于Yb：YAG薄盘技术的二极管泵浦chi脉冲放大（CPA）激光系统的开发，该系统的重复频率为100 Hz，输出脉冲能量在焦耳范围内。重点在于前置放大器的第一个结果-再生放大器（RA）和多通放大器（MP）。该系统由一个前端（包括CPA扩展器）和一个基于Yb：YAG薄盘放大器的放大器链和CPA压缩器组成。它是在我们的X射线激光（XRL）程序框架内开发的，并且满足在掠射入射泵浦几何形状中泵送基于等离子体的XRL的所有要求。当然，它也可以用于其他有趣的应用程序。利用RA脉冲能量，可以实现超过165 mJ的能量。在100 Hz的重复频率下，经过45分钟以上的测量，其稳定性为0.8％（1sigma）。光学效率为14％。以下的MP放大器可以将脉冲能量增加到300 mJ以上。可以证明将带宽受限的压缩压缩到小于2 ps。

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