Multi-functional all-optical photonic crystal logic gate using nonlinear directional coupler

Efficient and Compact Optical NOR Gate based on Photonic Crystal Platform

“…In addition, the FEM is used in conjunction with the COMSOL software tool to investigate the propagation of the suggested design. The suggested NOR gate may be placed in photonic integrated circuits due to its compact size of 252 μm 2 compared to those reported in [10,11,22]. The suggested all optical NOR gate has an improvement of 40% which makes it a practical design for photonic integrated circuits (PICs).…”

“…In this work, an optical NOR is suggested and analyzed using square lattice of dielectric rods with a diameter of 21×12 μm 2 and lattice constant of 630 nm. The suggested NOR gate may be placed in photonic integrated circuits due to its modest size 252 μm 2 by compare with references [10,11,22]. The suggested all optical NOR gate is characterized by improvements up to 40% which makes it a practical design for photonic integrated circuits (PICs).…”

“…The suggested all optical NOR gate has an improvement of 40% which makes it a practical design for photonic integrated circuits (PICs). Further, a rapid temporal response of 1.2 PS is achieved with a switching rate of 133GHz which is slower than those introduced in [10,11,19,20,21,22]. Finally, the suggested NOR gate can be used to boast the optical computing and signal processing.…”

“…In reference [21] a NOR gate with an out power of 68% of the input power while the state is ON and 7% when the state is off. The NOR gate has been proposed in reference [22] with an out power of 60% at ON state and 5% at off states with a switching rate of 3.4 ps. Reference [23] proposed NOR gate with dimension of 45.36 μm 2 and response time 1.2 Ps.…”