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arXiv 1710.07155physics.optics
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光纤中色散图引起的孤子间能量转移

Dispersion map induced energy transfer between solitons in optical fibres

A. Savojardo, M. Eberhard, R. A. Römer

摘要:

我们提出了一个实验装置来研究碰撞诱导孤子放大。在具有反常色散的光纤($β_2 < 0$)中,我们用正常色散光纤($β_2 > 0$)替换光纤的小区域。我们发现,孤子碰撞在这个区域能够交换能量。根据孤子对的相对相位,我们发现,能量转移可以导致超过$20\%$的能量增益为每个碰撞。一系列这样的事件可以用来进一步提高能量增益,允许相当大的孤子放大的可能性。这种能量转移不需要三阶色散或拉曼项。

英文摘要:

We propose an experimental setup to study collision-induced soliton amplification. In an optical fibre with anomalous dispersion ($β_2 < 0$), we replace a small region of the fibre with a normal dispersion fibre ($β_2 > 0$). We show that solitons colliding in this region are able to exchange energy. Depending on the relative phase of the soliton pair, we find that the energy transfer can lead to an energy gain in excess of $20\%$ for each collision. A sequence of such events can be used to enhance the energy gain even further, allowing the possibility of considerable soliton amplification. This energy transfer does not require a third order dispersion or Raman term.

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