Design and analysis of polarization rotation based all-optical ternary half-subtractor and full-subtractor using micro-ring resonator

All-optical polarization encoded ternary half and full-subtractor logic circuits using micro-ring resonator based polarization rotation switch (MRR-PRS) is theoretically investigated and demonstrated. In the proposed model, different polarization states of light are used to represent ternary logic states. All-optical ultrafast switching technology has been employed to design ternary half-subtractor and full-subtractor that produces desired output such as logic high, low and intermediate state according to the truth table of the respective ternary subtractor. The performance of scheme are analyzed by Jones matrix in terms of the Azimuth angle and Ellipticity angle and by Stokes parameter in terms of (S-0, S-1,S- S-2,S- S-3) using INTERCONNECT simulation software. MRR-PRS based ternary subtractor circuit has potential application in optical computing as the proposed circuit is compact, less power consumption and suitable for present integrated circuits.