Signal manipulation with a PT-symmetric coupler embedded into an array of optical waveguides

被引：3

作者：

Suchkov, S. V. ^{[1
]}

Borisov, D. I. ^{[2
]}

Sukhorukov, A. A. ^{[1
]}

Kivshar, Yu. S. ^{[1
]}

机构：

[1] Australia Natl Univ, Nonlinear Phys Ctr, Canberra, ACT 2601, Australia

[2] RAS, Inst Math USC, Ufa 450008, Russia

来源：

LETTERS ON MATERIALS-PIS MA O MATERIALAKH | 2014年 / 4卷 / 04期

基金：

俄罗斯科学基金会;

关键词：

PT-symmetry; waveguide; scattering;

D O I：

10.22226/2410-3535-2014-4-222-225

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the scattering of linear waves in a long waveguide array with a parity-time (PT) - symmetric defect created by two waveguides with balanced gain and loss. We present exact solutions for the scattering of linear waves on such a defect. We reveal that the reflected and transmitted linear waves can be amplified substantially after interaction with the PT-symmetric defect thus allowing an active control of the wave propagating through the array.

引用

页码：222 / 225

页数：4

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