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Optimization of supercontinuum generation in photonic crystal fibers for pulse compression

机译:光子晶体光纤中用于脉冲压缩的超连续谱产生的优化

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摘要

A theoretical study of supercontinuum generation in photonic crystal fiber and its application to pulse compression is presented. The evolution of the spectrum can be divided into three stages: initial broadening below a certain threshold propagation distance, dramatic broadening to a supercontinuum at a threshold distance, and, finally, saturation of the spectral width on propagation. It is found that the group delay and group-delay dispersion of the supercontinum are sensitive to the input pulse peak power after further propagation at the third stage. Fluctuations from the input pulse are amplified and translated into fluctuations and time shift of the compressed pulses. There exists an optimum compressed distance at which compressed pulses with negligible fluctuation and time shift can be obtained.
机译:提出了光子晶体光纤中超连续谱产生的理论研究及其在脉冲压缩中的应用。频谱的演化可以分为三个阶段:在某个阈值传播距离以下的初始展宽,在阈值距离处的戏剧性扩展至超连续谱,以及最终在传播时频谱宽度饱和。发现在第三阶段进一步传播之后,超连续谱的群时延和群时延色散对输入脉冲峰值功率敏感。输入脉冲的波动被放大并转化为压缩脉冲的波动和时移。存在最佳的压缩距离,在该最佳压缩距离处可以获得具有可忽略不计的波动和时移的压缩脉冲。

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