Coherent perfect absorber and laser for nonlinear waves in optical waveguide arrays
Optics
2018-12-11 v1 Pattern Formation and Solitons
Abstract
A localized non-Hermitian potential can operate as a coherent perfect absorber or as a laser for nonlinear waves. The effect is illustrated for an array of optical waveguides, with the central waveguide being either active or absorbing. The arrays situated to the left and to the right from the center can have different characteristics. The result is generalized to setups with the central waveguide carrying additional nonlinear dissipation or gain and to the two-dimensional arrays with embedded one-dimensional absorbing or lasing sub-arrays.
Cite
@article{arxiv.1811.02247,
title = {Coherent perfect absorber and laser for nonlinear waves in optical waveguide arrays},
author = {Dmitry A. Zezyulin and Herwig Ott and Vladimir V. Konotop},
journal= {arXiv preprint arXiv:1811.02247},
year = {2018}
}
Comments
to appear in Optics Letters