II型二次谐波中“颈部”不稳定性优于“蛇形”不稳定性

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI:10.1364/nlgw.1998.nsnps.p13

D. Skryabin, W. Firth

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引用次数: 0

摘要

研究了正常群速度色散存在下一维三波参数孤子的调制不稳定性。特别是，我们证明了“蛇”的不稳定性被“脖子”的不稳定性强烈地抑制了。这一结果与先前在Kerr和I型二次介质中研究的MI形成鲜明对比。

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Domination of ‘neck’ instability over ‘snake’ one in type II second harmonic generation

We investigate modulational instability (MI) of 1-dimensional three-wave parametric solitons in presence of normal group velocity dispersion. In particular, we show that the ‘snake’ instability is strongly suppressed by the ‘neck’ one. This result is in a sharp contrast with previously studied MI in Kerr and type I quadratic media.

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Nonlinear Guided Waves and Their Applications

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