| Issue |
EPL
Volume 100, Number 5, December 2012
|
|
|---|---|---|
| Article Number | 54003 | |
| Number of page(s) | 5 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/100/54003 | |
| Published online | 07 December 2012 | |
Scattering of the discrete solitons on the 
-symmetric defects
1 Institute for Metals Superplasticity Problems, Russian Academy of Sciences - Ufa 450001, Russia
2 Nonlinear Physics Centre, Research School of Physics and Engineering, Australian National University Canberra ACT 0200, Australia
Received: 28 August 2012
Accepted: 17 November 2012
We study the propagation of linear waves and solitons in an array of optical waveguides with an embedded defect created by a pair of waveguides with gain and loss satisfying the so-called parity-time (
) symmetry condition. We demonstrate that in the case of small soliton amplitudes, the linear theory describes the scattering of solitons with a good accuracy. We find that the incident high-amplitude solitons can excite the mode localized at the -symmetric defect. We also show that by exciting the localized mode of a large amplitude, it is possible to perform phase-sensitive control of soliton scattering and amplification or damping of the localized mode.
PACS: 42.25.Bs – Wave propagation, transmission and absorption / 42.82.Et – Waveguides, couplers, and arrays
© EPLA, 2012
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.