Quasi-Parametric Chirped-Pulse Amplification Simultaneously Enables High Peak Power and High Average Power

Quasi-Parametric Chirped-Pulse Amplification Simultaneously Enables High Peak Power and High Average Power
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准参数线性调频脉冲放大同时实现高峰值功率和高平均功率

DOI:
10.1109/jphot.2019.2929175
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发表时间:
2019-07
影响因子:
2.4
通讯作者:
Liejia Qian
Liejia Qian
中科院分区:
工程技术4区
文献类型:
--
作者:
Zhe Yin;Jingui Ma;Jing Wang;Peng Yuan;Guoqiang Xie;Liejia Qian

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具有高峰值功率和高平均功率的超快激光器将为许多应用开辟新的途径。虽然钛:蓝宝石激光放大和光学参量放大的传统技术可以实现几十瓦的平均功率,但由于热限制,缩放到更高的平均功率是具有挑战性的。在这里,我们证明了准参量啁啾脉冲放大(QPCPA)可以打破这个平均功率的障碍。QPCPA被证明是强大的对热退相通过阻碍的反转换效应。数值模拟结果表明,基于Sm:YCOB晶体的QPCPA在5kHz和1Hz下分别可以支持3TW和13.5PW的峰值功率,平均功率均超过150W。我们还讨论了QPCPA的前景与最近提出的配置的温度不敏感的相位匹配,这是有希望同时实现更高的峰值功率和更高的平均功率。
Ultrafast lasers with both high peak-power and high average-power will open new avenues for many applications. While conventional technologies of Ti:sapphire laser amplification and optical parametric amplification can achieve several tens of watts of average-power, scaling to a higher average-power is challenging due to thermal limitations. Here, we demonstrate that the quasi-parametric chirped-pulse amplification (QPCPA) can break this average-power barrier. QPCPA is proven robust against the thermal dephasing by obstructing the back-conversion effect. Numerical simulations show that QPCPA based on a Sm:YCOB crystal can support peak powers of 3 TW at 5 kHz and 13.5 PW at 1 Hz, with average powers exceeding 150 W in both cases. We also discuss the prospects of QPCPA with the recently proposed configuration of temperature-insensitive phase matching, which is promising to simultaneously achieve higher peak-power and higher average-power.
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