Since the seventies of the past century the reversible logic has originated as an unconventional form of computing. It is new relatively in the area of extensive applications in quantum computing, low power CMOS, DNA computing, digital signal processing (DSP), nanotechnology, communication, optical computing, computer graphics, bio information, etc .Here we present and configure a new TAND gate...

By harnessing aspects of quantum mechanics, communication and information processing could be radically transformed. Promising forms of quantum information technology include optical quantum cryptographic systems and computing using photons for quantum logic operations. As with current information processing systems, some form of memory will be required. Quantum repeaters, which are required fo...

All-optical flip-flops are key components for photonic digital processing in next generation optical networks and optical computing. In most digital applications signals synchronization with an external reference clock is a basic feature. In this paper an entire set of all-optical clocked flip-flops, including SR, D, T, and JK types is proposed and demonstrated. Each configuration employs a sin...

By overcoming speed bottlenecks from electronic switching as well as optical/electronic conversions, all-optical logic gates can permit further exploitation of the nearly 40THz of bandwidth available from optical fibers. We focus on the use of optical solitons and alloptical logic gates to implement ultrafast "interchanges" or switching nodes on packet networks with speeds of 100Gbit/s or great...

A novel all-optical logic device, composed of an SOA and an optical filter, is demonstrated for AND, OR and XOR gates at 10 Gb/s. Simulation indicates the device can operate at much higher bit rate.

In this paper, we show that anisotropic photosensitive nematic liquid crystals (PNLC) made by incorporating anisotropic absorbing dyes are promising candidates for constructing all-optical elements by virtue of the extraordinarily large optical nonlinearity of the nematic host. In particular, we have demonstrated several room-temperature 'prototype' PNLC-based all-optical devices such as optica...

Reversible logic gates are very much in demand for the future computing technologies as they are known to produce Zero power dissipation.. Reversible logic circuits are of interests to power minimization having applications in low power CMOS design, optical information processing, DNA computing, bioinformatics, quantum computing and nanotechnology. In recent years, reversible logic has emerged ...

A programmable FPGA-based digital logic circuit is enhanced with high-speed, positive emitter-coupled logic (PECL) to create a standalone tester for a self routing optical packet switching network. This tester serves as a test bed for evaluating high-speed electrical to optical conversion techniques and the difficulties associated with burst packet transmissions across the switching network. Th...