High-degree pulse compression and high-coherence supercontinuum generation in a convex dispersion profile
High-degree pulse compression and high-coherence supercontinuum generation in a convex dispersion profile
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DOI：
10.1016/j.optcom.2013.03.028
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发表时间：
2013-08
影响因子：
2.4
通讯作者：
Qian Li;J. Kutz;P. Wai
中科院分区：
文献类型：
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作者：
Qian Li;J. Kutz;P. Wai
我们考虑在三个连续光纤段中传输的级联孤立子的非绝热脉冲压缩，每个光纤段都具有两个零色散波长的凸色散分布。凸色散分布提供了在整个频率范围内色散的精确描述，从而允许在考虑超短脉冲（<1ps）时对级联三阶孤子压缩进行全面的理论处理。典型的色散平坦渐减光纤（DFDF）在其色散分布中具有沿着光纤长度变化的凸曲率。与DFDF相比，具有沿光纤长度保持沿着恒定的凸色散的光纤段的级联大大降低了制造难度，并且在实践中提供了简单得多的工程设计。实现了脉冲的高度压缩和高相干超连续谱的产生。
We consider the non-adiabatic pulse compression of cascaded soliton propagating in three consecutive optical fiber segments, each of which has a convex dispersion profile with two zero-dispersion wavelengths. The convex dispersion profile provides an accurate description of the chromatic dispersion over the whole frequency range, thus allowing for a comprehensive theoretical treatment of the cascaded third order soliton compression when ultrashort pulses (<1ps) are considered. Typical dispersion-flattened and decreasing fiber (DFDF) has a convex curvature in its dispersion profile which varies along length of fiber. Compared to DFDF, the cascading of fiber segments with convex dispersion that stays constant along the fiber length greatly reduces the manufacture difficulties and provides a much simpler engineering design in practice. High-degree pulse compression and high-coherence supercontinuum generation are demonstrated.