Abstract

In this paper, we propose a new design for all-optical basic arithmetic elements using optical technique namely dark-bright solitons conversion control within an optical add-drop filter. In operation, all-optical data input logic ‘0’, ‘1’ is formed by dark soliton (D) and bright soliton (B) pulses, respectively. The conversion behaviour between dark and bright soliton pulses can be obtained and formed the logic pulses by a π/2 phase shifted device such as an optical coupler, in which the binary logic operation can be formed simultaneously at the thought and drop ports, respectively. In all-optical NAND gate and S-R flip-flop application can be recognized as a simple and flexible system for forming the logic switching system. Numerical simulation results are obtained and confirmed for the useful application, in which the advanced logical system can be operated.

Highlights

  • Near future, computation and communication problems are inevitable since conventional electronic technology will be soon reaching its speed limit

  • We have presented an all-optical flip-flop system for logical processing operation and arithmetic operation base tree architecture, which can be used for an electronic circuit replacement, which can be replaced used for an electronic circuit(10-13) by using dark-bright soliton pulses conversion control(14-15), the theoretical background is reviewed

  • The all-optical flip-flop operations and arithmetic operations of binary based on dark-bright solitons conversion behaviors can be performed, in which the coincidence dark and bright soliton pulses can be separated after propagating into the optical-filter device with π/2 phase shifted(14)

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Summary

Introduction

Computation and communication problems are inevitable since conventional electronic technology will be soon reaching its speed limit. All-optical flip-flop is an essential component for latching functions in ultrahigh speed all-optical processing applications(1,2) Many systems such as a terahertz optical asymmetric de-multiplex (TOAD)(3), semiconductor optical amplifier(4), Fabry-Perot laser diode(5), ring lasers(6), photonic crystals(7,8), DBR laser diode(9) have been proposed. We have presented an all-optical flip-flop system for logical processing operation and arithmetic operation base tree architecture, which can be used for an electronic circuit replacement, which can be replaced used for an electronic circuit(10-13) by using dark-bright soliton pulses conversion control(14-15), the theoretical background is reviewed. In this concept, the simultaneous logic operation of binary based on dark-bright soliton conversion behaviors can be performed, in which the coincidence dark and bright soliton pulses can be separated after propagating into the π/2 phase shifted device (an optical coupler). The proposed scheme is based on a 1 bit binary compared to the complex logic circuits, which can be compared by any 2 bits, when logic ‘0’ and ‘1’ use the dark and bright soliton pulses, respectively

Dark-Bright Solitons Conversion Control
All Optical Logic NAND Gate
All Optical S-R Flip-Flop
Output Port
Conclusion
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