Perturbation-induced dynamics of small-amplitude dark optical solitons.

نویسنده

  • Y S Kivshar
چکیده

It is demonstrated that the dynamics of small-amplitude dark solitons in optical fibers may be described by the wellknown Korteweg-de Vries equation. This approach allows us to explain analytically the temporal self-shift of dark solitons due to the Raman contribution to the nonlinear refractive index, which has been observed experimentally by Weiner et al. [Opt. Lett. 14, 868 (1989)].

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Spatial soliton pairs in an unbiased photovoltaic-photorefractive crystal circuit

: Optical separate spatial dark and bright soliton pairs in steady-state case in one dimension, for a series circuit consisting of two-photon photorefractive (PR) crystal are investigated. Each crystal can be supported the spatial soliton, and at least one must be photovoltaic. The two solitons are known collectively as separate spatial soliton pairs with dark–dark, bright–dark and bright–brigh...

متن کامل

Korteweg-de Vries description of Helmholtz-Kerr dark

A wide variety of different physical systems can be described by a relatively small set of universal equations. For example, small-amplitude nonlinear Schrödinger dark solitons can be described by a Korteweg-de Vries (KdV) equation. Reductive perturbation theory, based on linear boosts and Gallilean transformations, is often employed to establish connections to and between such universal equati...

متن کامل

Dark solitons on backgrounds of finite extent

Adiabatic modification of a dark soliton due to dispersion(or diffraction-)induced spreading of a finite-width background is investigated. It is proved analytically that a frequency chirp of the background of finite extent does not affect the soliton motion, as was earlier observed in numerical simulations and experimental investigations of dark-pulse propagation in optical fibers. It is also s...

متن کامل

Dynamics of Dark Solitons

-Spatial dark solitons are known to be stable nonlinear localized waves in self-defocusing media. We demonstrate how to analyse the dynamics of dark solitons in the presence of small perturbations, and we consider the effect of two-photon absorption on dark solitons as a particular example. We also predict a new type of dark solitons of circular symmetry, ring dark solitons, which are stable ag...

متن کامل

Dark optical solitons near the zero-dispersion wavelength.

Propagation of a dark optical soliton is investigated in the neighborhood of the zero-group-dispersion wavelength. Analytical results are obtained in the small-amplitude limit when the soliton is described by the Korteweg-de Vries equation. It is predicted that dark solitons may exist near the zero-group-dispersion point, and the region is found where they are unstable and may be transformed in...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Optics letters

دوره 15 22  شماره 

صفحات  -

تاریخ انتشار 1990