Abstract
Switching is a principle process in digital computers and signal processing systems. The growth of optical signal processing systems, draws particular attention to design of ultra-fast optical switches. In this paper, All Optical Switches in linear state Based On photonic crystal Directional coupler is analyzed and simulated. Among different methods, the finite difference time domain method (FDTD) is a preferable method and is used. We have studied the application of photonic crystal lattices, the physics of optical switching and photonic crystal Directional coupler. In this paper, Electric field intensity and the power output that are two factors to improve the switching performance and the device efficiency are investigated and simulated. All simulations are performed by COMSOL software.
Highlights
Today, optical components, the switches, has been considered in the telecommunication industry
Optical signals can be switched by electric switches, the optical signals are converted to electrical signals by photo detectors, and they are transformed optical signals by LED or laser
In order to reduce losses and delay of optical switches and increase high speed rate, All Optical Switches in linear state based on photonic crystal Directional coupler is designed and simulated by using COMSOL software
Summary
Optical components, the switches, has been considered in the telecommunication industry. Optical signals can be switched by electric switches, the optical signals are converted to electrical signals by photo detectors, and they are transformed optical signals by LED or laser. These transformations cause time delays and energy losses. In order to reduce losses and delay of optical switches and increase high speed rate, All Optical Switches in linear state based on photonic crystal Directional coupler is designed and simulated by using COMSOL software. An all optical switch based on photonic crystal directional coupler is selected and the results have been simulated and analyzed.
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