Modulation instability of pulsed radiation in an optical waveguide in the presence of the traveling refractive index wave


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Abstract

The conditions for the onset of modulation instability of wave packets in an optical waveguide in the presence of the traveling refractive index wave are investigated. An expression governing the growth rate of a small harmonic perturbation at the early development stage of the modulation instability is obtained. Based on numerical analysis, the behavior of the wave packet at the developed modulation instability stage is studied for different parameters of the waveguide and the refractive index wave.

About the authors

I. O. Zolotovskii

Ulyanovsk State University

Author for correspondence.
Email: rafzol.14@mail.ru
Russian Federation, ul. L. Tolstogo 42, Ulyanovsk, 432970

D. A. Korobko

Ulyanovsk State University

Email: rafzol.14@mail.ru
Russian Federation, ul. L. Tolstogo 42, Ulyanovsk, 432970

V. A. Lapin

Ulyanovsk State University

Email: rafzol.14@mail.ru
Russian Federation, ul. L. Tolstogo 42, Ulyanovsk, 432970

D. I. Sementsov

Ulyanovsk State University

Email: rafzol.14@mail.ru
Russian Federation, ul. L. Tolstogo 42, Ulyanovsk, 432970

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