Soliton Supermode Transitions and Total Red Shift Supression in Multi-Core Fibers

Published on 2019-08-20T19:10:57Z (GMT) by
Soliton propagation in seven-core fibers is studied numerically with the frequency dependence of linear coupling taken into account. It is shown that under certain conditions solitons can undergo spontaneous supermode transitions upon abrupt red shift, analoguous to the recently discovered phenomenon of soliton self-mode conversion in step-index multi-mode fibers. When the core separation is increased, the dynamics change drastically, leading to total suppression of soliton self-frequency shift and the emergence of spatially oscillating solitonic structures with resemblance to solitons in graded-index multi-mode fibers.

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Antikainen, Aku; Agrawal, Govind (2019): Soliton Supermode Transitions and Total Red Shift Supression in Multi-Core Fibers. The Optical Society. Collection.