All Optical Reversible NOR Gates using TOAD

In recent past, reversible logic is emerged as a promising computing paradigm with applications in low-power CMOS, quantum computing, optical computing and nanotechnology. Optical logic gates become potential component to work at macroscopic (light pulses carry information), or quantum (single photon carries information) levels with high efficiency. In this paper, we propose a novel scheme of TOAD-based all optical reversible NOR gates and their universal application in all-optical domain. Simulation results verify the functionality of these TNOR and PNOR gates as well as reversibility. Index Terms Reversible logic gates, Terahertz Optical Asymmetric Demultiplexer (TOAD). TNOR gate, PNOR gate