Research Paper: Design and Simulation of all-optical Comparator Using Photonic Crystal-based Nonlinear Ring Resonators

Document Type : Research Paper

Author

Department of Electrical and Computer Engineering, Yasuj Branch, Technical and Vocational University (TVU) , Kohgiluyeh and BoyerAhmad, Iran

Abstract

All-optical comparators can play crucial roles in the next generation of optical integrated circuits. In this paper, a novel structure was proposed for designing and implementing an all-optical comparator. Two nonlinear ring resonators were used for designing the proposed structure. These ring resonators can drop optical waves with central wavelength and optical intensities equal to 1550 nm and 0.1 W/m2, respectively. The simulation results show that the proposed structure can perform optical cooperation. At the proposed structure when X is ON and Y is OFF (i.e. X > Y) O1 will be ON and O2 will be OFF. When X is OFF and Y is ON (i.e. X < Y) O1 will be OFF and O2 will be ON. Finally, when X and Y are in similar states (i.e. X=Y) both output ports will be OFF. By Combining these output states one can implement optical comparison. The maximum rise time is about 1/5 ps.

Keywords

Main Subjects

References

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History

  • Receive Date: 09 March 2021
  • Revise Date: 22 April 2021
  • Accept Date: 14 June 2021

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