Abstract
Using Terahertz Optical Asymmetric Demultiplexer (TOAD) based switch we have designed all-optical parallel half adder and full adder. The approach to design this all-optical arithmetic circuit not only enhances the computational speed but also is capable of synthesizing light as input to produce desire output. The main advantage of parallel circuit is synchronization of input which is not required. All the circuits are designed theoretically and verified through numerical simulations.
Highlights
Nowadays high speed all-optical logic gates are crucial devices in optical networks because they execute essential signal processing function such as switching regeneration and header recognition processing in photonic switching nodes
In this paper we propose and describe the all-optical parallel half adder and full adder using Terahertz Optical Asymmetric Demultiplexer (TOAD) based all-optical switches
The simulated input and output waveforms of half adder are shown in Figure 5 and Figure 6, respectively
Summary
Nowadays high speed all-optical logic gates are crucial devices in optical networks because they execute essential signal processing function such as switching regeneration and header recognition processing in photonic switching nodes. A revolution has been brought about in all-optical information processing system with the help of the discovery of ultra high speed all-optical switches based on cross phase modulation (XPM) [1]-[4]. In this paper we propose and describe the all-optical parallel half adder and full adder using TOAD based all-optical switches. We have utilized both the transmitted and reflected port of the device
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