Extracavity compression technique for high-energy femtosecond pulses
Extracavity compression technique for high-energy femtosecond pulses
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DOI：
10.1364/josab.20.000105
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发表时间：
2003
影响因子：
1.9
通讯作者：
E. Mevel;O. Tcherbakoff;F. Salin;E. Constant
中科院分区：
文献类型：
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作者：
E. Mevel;O. Tcherbakoff;F. Salin;E. Constant
介绍了一种新的适用于产生高能量飞秒脉冲的腔外脉冲压缩技术。这种技术是基于光谱展宽的自相位调制在体相介质中，然后由远场空间滤波，它提供了一个均匀的光谱展宽的空间分布与50%的传输相结合。原则上，该技术允许将能量高达100 mJ的脉冲压缩3-5倍。在原理验证实验中，我们将42 fs、480 μJ脉冲压缩为14 fs、220 μJ脉冲。
We introduce a new extracavity pulse-compression technique suitable for generating high-energy femtosecond pulses. This technique is based on spectral broadening by self-phase modulation in bulk media followed by far-field spatial filtering, which provides a uniform spectral broadening over the spatial profile combined with a transmission of 50%. In principle, this technique allows compression of pulses with energy up to ∼100 mJ by a factor of 3–5. In a proof-of-principle experiment, we compressed a 42-fs, 480-μJ pulse to a 14-fs, 220-μJ pulse.