非局域非线性耦合光纤系统的孤子解及传输特性

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中图分类号：TN929.11 文献标识码：A 文章编号：2096-4706（2025）23-0008-06

Soliton Solution and Transmission Characteristics of Nonlocal Nonlinear Coupled Fiber System

XI Yangyang （SchoolofInformation Engineering，Nanjing Normal University Zhongbei Colege，Zhenjiang 2123oo，China）

Abstract：Inthispaper，aclass ofnonlinearcoupled Schrodingersystem including nonlocalself-phase modulationcrossphase modulationandfour-wave mixingefectis studied.Using the Hrota bilinear method，theexact solutionof thefirst-order vectorsolitonofthesystemisobtanedanalyticallunderspecifcconstraints，andits propagationdynamicscharacteristicsare analyzed indetail.Theregulationofthe keyparametersofthesystemontheamplitude，widthandtransmisionconstantof the solitonisdiscussd.Thenumericalsimulationresultsshowthatthecoupledsolitonsolutioncanstilltansmit stablyafter applying asmallperturbation，andhasgood robustness.Theregulationofthe keyparametersof the system on theamplitude， widthandtransmisionconstantofthesolitonisdiscussd.Inaddition，thestudysystematicallyrevealstheintrisicphysical mechanismof nonlocal self-phase modulationand cros-phase modulation effects inmaintaining soliton morphologyand regulating their interaction.

Keywords：soliton; nonlinear optics; coupling;Hirota bilinear

0 引言

非线性科学的深入研究推动了光纤通信理论的快速发展。（剩余9277字）