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arXiv 2409.07075physics.opticsnlin.PS
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纯高阶偶次色散孤子的解析方法

Analytical approach for pure high, even-order dispersion solitons

Xing Liao, Jiahan Huang, Daquan Lu, Wei Hu

AI总结:

本研究采用变分法求解纯高阶偶次色散孤子的非线性薛定谔方程,得到解析解并验证其低阶吻合度高,同时证明该类孤子稳定且存在内模,为其在高能激光器中的应用提供支撑。

摘要:

我们采用变分法,从理论上求解了描述纯高阶偶次色散(PHEODs)孤子传输的非线性薛定谔方程。本文给出了各阶色散下非线性脉冲传输系统的拉格朗日量,推导得到PHEOD孤子的解析解,并将其与数值结果进行对比。结果表明,变分解在色散阶数较低(≤8)时与数值结果吻合度极高,随着色散阶数升高,吻合度逐渐下降。此外,通过线性稳定性分析,我们证明所有PHEOD孤子均具备稳定性,并得到了孤子传输过程中伴随的孤子内模。这些研究结果对PHEOD孤子在高能激光器中的应用具有参考价值。

英文摘要:

We theoretically solve the nonlinear Schrödinger equation describing the propagation of pure high, even order dispersion (PHEODs) solitons by variational approach. The Lagrangian for nonlinear pulse transmission systems with each dispersion order are given and the analytical solutions of PHEOD soltions are obtained and compared with the numerical results. It is shown that the variational results approximate very well for lower orders of dispersion ($\le 8$) and get worst as the order increasing. In addition, using the linear stability analysis, we demonstrate that all PHEOD solitons are stable and obtain the soliton internal modes that accompany soliton transmission. These results are helpful for the application of PHEOD solitons in high energy lasers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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