We study nonlinear binary arrays composed of parity-time-symmetric optical waveguides with gain and loss. We demonstrate that such nonlinear binary lattices support stable discrete solitons, which can be adiabatically tuned and switched through nonlinear symmetry breaking by varying gain and loss parameters.
© 2010 Optical Society of America
Original Manuscript: June 22, 2010
Manuscript Accepted: July 20, 2010
Published: August 27, 2010
Sergey V. Dmitriev, Andrey A. Sukhorukov, and Yuri S. Kivshar, "Binary parity-time-symmetric nonlinear lattices with balanced gain and loss," Opt. Lett. 35, 2976-2978 (2010)