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首页> 外文期刊>Optics Letters >Laser pulse compression up to few-cycle durations in multicore fiber
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Laser pulse compression up to few-cycle durations in multicore fiber

机译：激光脉冲压缩高达多芯光纤中的几个循环持续时间

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摘要

A mechanism for self-compression of laser pulses in a multicore fiber on the basis of nonlinear combining of radiation from many cores, surrounding the central core in a ring and its trapping into the central core in a chirp-free and pedestal-free soliton-like pulse, is proposed. It is shown that the compression ratio is weakly dependent on the energy and the number of cores in the fiber and approximately equal to 6 with an almost 100% energy efficiency. The compression ratio can be increased to 40 with an efficiency of more than 50% by using additional compression of longer pulses with approximately the same energy. The possibility of a 38-fold compression of a laser pulse to a duration of 15 fs with a pulse energy of 4 nJ in the fiber with realistic parameters was demonstrated numerically. (C) 2019 Optical Society of America
机译：基于许多芯的非线性组合的多芯光纤中激光脉冲自压缩机制，围绕着环中央芯的辐射及其在无啁啾和无基座孤子中的中心核心 - 像脉冲一样。 结果表明，压缩比弱依赖于纤维中的能量和核的数量，大约等于6的能量效率。 通过使用大致相同能量的较长脉冲的额外压缩，压缩比可以增加到40以上的效率超过50％。 在数值上展示了在光纤中具有4 nj的4 nj的脉冲能量的38倍激光脉冲的38倍压缩的可能性，具有现实参数。 （c）2019年光学学会

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