Designing a class of asymmetric twin core photonic crystal fibers for switching and multi-frequency generation
A class of asymmetrical PCF coupler for all optical control is proposed. The influence of structural asymmetry on coupling and switching are reported. The system is robust to the asymmetry and exhibits tuned coupling at linear regime. At nonlinear regime, the system displays enhanced transmission characteristics. A significant new frequency generation also revealed by the proposed designs.
twin core photonic crystal fiber multi-frequency generation asymmetric coupler projection operator method split step fourier method all optical switching