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arXiv 1709.01153nlin.PSmath-phmath.MP
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高阶色散控制的Optical Fibers中的孤立波

Solitary Waves in Optical Fibers Governed by Higher Order Dispersion

Vladimir I. Kruglov, John D. Harvey

摘要:

本文给出了考虑二阶、三阶和四阶色散影响的非线性薛定谔方程的精确孤波解。通过算子的符号确定性和Sobolev型积分证明了该sech2型类孤子解的稳定性。本文还给出了在光纤中存在这种稳定的局域脉冲的主要判据。在高阶色散光纤中传输的类孤子光脉冲的一个独特之处是它们的参数满足有效的标度关系。当非线性薛定谔方程中包含吸收或增益时,由微扰理论给出了主孤子解项。我们预计这种稳定的局域脉冲可以在通信、慢光器件和超快激光器中找到实际应用。

英文摘要:

An exact solitary wave solution is presented for the nonlinear Schrodinger equation governing the propagation of pulses in optical fibers including the effects of second, third and fourth order dispersion. The stability of this soliton-like solution with sech2 shape is proven by the sign-definiteness of the operator and an integral of the Sobolev type. The main criteria governing the existence of such stable localized pulses propagating in optical fibers are also formulated. A unique feature of these soliton-like optical pulses propagating in a fiber with higher order dispersion is that their parameters satisfy efficient scaling relations. The main soliton solution term given by perturbation theory is also presented when absorption or gain is included in the nonlinear Schrodinger equation. We anticipate that this type of stable localized pulses could find practical applications in communications, slow-light devices and ultrafast 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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