What can we do with a linear optical logic gate?

Qian, Lei; Caulfield, H. John

doi:10.1016/j.ins.2006.02.001

Cited by 14 publications

(7 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The elementary units of electronic circuits are transistor based Boolean logic gates. In photonics circuits, logic functions can be realized by linear interferences [2][3][4] or by nonlinear optical processes [5,6]. For linear optical logic gates, the constructive or destructive interference of the input signals yields corresponding logic operation results, which show merits of good stability and extensibility.…”

Section: Introductionmentioning

confidence: 99%

Optical interferometric logic gates based on metal slot waveguide network realizing whole fundamental logic operations

Pan¹,

Wei²,

Xu³

2013

Opt. Express

View full text Add to dashboard Cite

Optical interferometric logic gates in metal slot waveguide network are designed and investigated by electromagnetic simulations. The designed logic gates can realize all fundamental logic operations. A single Y-shaped junction can work as logic gate for four logic functions: AND, NOT, OR and XOR. By cascading two Y-shaped junctions, NAND, NOR and XNOR can be realized. The working principle is analyzed in detail. In the simulations, these gates show large intensity contrast for the Boolean logic states of the output. These results can be useful for future integrated optical computing.

show abstract

Section: Introductionmentioning

confidence: 99%

Optical interferometric logic gates based on metal slot waveguide network realizing whole fundamental logic operations

Pan¹,

Wei²,

Xu³

2013

Opt. Express

View full text Add to dashboard Cite

show abstract

“…Light-based devices have been proposed for some time as a potential strategy for advancing semiconductor-based computing beyond the fundamental performance limitations of electronic devices, as epitomized by Moore’s law. − Two major classes of all-optical logic have been demonstrated: one based on linear optical effects, known as interferometric logic, − and the other based on nonlinear optical effects, arising typically from light-induced modulations in the refractive index of an active medium. − Since interferometric logic depends on the relative optical phase of the two input signals, it manifests inherent stability challenges, − which may be possible to reduce by device miniaturization and monolithic integration . The diffraction limit of light presents a fundamental obstacle for reducing the dimensions of optical logic components to length scales commensurate with electronic devices in integrated circuits.…”

mentioning

confidence: 99%

Quantum Dot-Based Local Field Imaging Reveals Plasmon-Based Interferometric Logic in Silver Nanowire Networks

Wei

Li²,

Tian³

et al. 2011

Nano Lett.

280

278

View full text Add to dashboard Cite

We show that the local electric field distribution of propagating plasmons along silver nanowires can be imaged by coating the nanowires with a layer of quantum dots, held off the surface of the nanowire by a nanoscale dielectric spacer layer. In simple networks of silver nanowires with two optical inputs, control of the optical polarization and phase of the input fields directs the guided waves to a specific nanowire output. The QD-luminescent images of these structures reveal that a complete family of phase-dependent, interferometric logic functions can be performed on these simple networks. These results show the potential for plasmonic waveguides to support compact interferometric logic operations.

show abstract

“…Both NOR and NAND gates are referred to as universal gates. Even though some effort has been made to customize a new set of optical logic rules 26,27 , the Boolean logic rules are still widely adopted by most works in the field of optical computing.…”

Section: Introductionmentioning

confidence: 99%

All-optical logic gate computing for high-speed parallel information processing

Jiao¹,

Liu²,

Zhang³

et al. 2022

OES

View full text Add to dashboard Cite

Optical computing and optical neural network have gained increasing attention in recent years because of their potential advantages of parallel processing at the speed of light and low power consumption by comparison with electronic computing. The optical implementation of the fundamental building blocks of a digital computer, i.e. logic gates, has been investigated extensively in the past few decades. Optical logic gate computing is an alternative approach to various analogue optical computing architectures. In this paper, the latest development of optical logic gate computing with different kinds of implementations is reviewed. Firstly, the basic concepts of analogue and digital computing with logic gates in the electronic and optical domains are introduced. And then a comprehensive summary of various optical logic gate schemes including spatial encoding of light field, semiconductor optical amplifiers (SOA), highly nonlinear fiber (HNLF), microscale and nanoscale waveguides, and photonic crystal structures is presented. To conclude, the formidable challenges in developing practical all-optical logic gates are analyzed and the prospects of the future are discussed.

show abstract

What can we do with a linear optical logic gate?

Cited by 14 publications

References 7 publications

Optical interferometric logic gates based on metal slot waveguide network realizing whole fundamental logic operations

Optical interferometric logic gates based on metal slot waveguide network realizing whole fundamental logic operations

Quantum Dot-Based Local Field Imaging Reveals Plasmon-Based Interferometric Logic in Silver Nanowire Networks

All-optical logic gate computing for high-speed parallel information processing

Contact Info

Product

Resources

About