This study has proposed a new design system for basic all-optical logic and arithmetic operation using dark-bright soliton conversion control base on tree architecture. Optical tree architecture and nonlinear materials can provide a significant role for contribution in optical interconnecting network and ultrafast photonic computing system. In operation, the input data for all-optical binary logic can be formed by dark and bright soliton pulses for logic 0 and 1, respectively. By using the dark-bright soliton conversion behaviors, the conversion between dark and bright soliton pulses can be obtained and formed the logic pulse by a π/2 phase shifted device (i.e., an optical coupler). In application, the proposed scheme can be recognized as a simple and flexible system for forming the logic switching system, which can be used for advanced logical system.
K. Luangxaysana, P. Phongsanam, S. Mitatha, M. Yoshida, N. Komine and P.P. Yupapin, 2012. All-Optical Logic and Arithmetic Operation using Soliton Control for Tree Architecture Use. Information Technology Journal, 11: 1227-1234.