Results 231 to 240 of about 3,636,883 (285)

Realization of All Optical Logic Gates Using Universal NAND Gates on Photonic Crystal Platform

open access: yesSuperlattices and Microstructures, 2017
In this paper, the design of all-optical logic gates using the combination of universal NAND gates has been proposed. The photonic crystal structure consists of triangular lattice arrangement of air holes in silicon.
Yogita Kalra, Preeti Rani, R K Sinha
exaly   +2 more sources

Optical Logic Gates

Latin America Optics and Photonics Conference, 2018
In this work we analyze in detail the influence of the parameters of a universal logic gate based on photonic crystals. We have verified a high tolerance against manufacturing and error of the order of 10% for the cylinder radius and lattice constant.
Pedro P. Matos Barreto   +1 more
openaire   +1 more source

All-optical programmable logic gate

Applied Optics, 1990
Experimental results are presented showing all-optical programmability and operation of a multifunction Boolean logic gate. All eight symmetric two-input logic functions have been demonstrated. Comments on the practical implementation and usage of this gate within an optical circuit are made.
R G, Craig   +5 more
openaire   +2 more sources

Programmable Logic Gates for Optical Processing

Fifth International Conference on Information Technology: New Generations (itng 2008), 2008
We present the results of joint development effort between Luna Innovations, University of Alberta and Virginia Tech targeting the development of ultradense photonic integration platform based on self assembled electro-optical polymers and nanoimprinting approach.
Vladimir Kochergin   +6 more
openaire   +2 more sources

All-optical integrated micro logic gate

Microelectronics Journal, 2011
In this paper we present a novel approach for realizing an integrated all-optical logic gate. The basic principle is based upon stimulated emission process generated in an active gain medium while special interferometric photonic wave-guiding structure allows the realization of an integrated micro scale device. The operation rate of the proposed device
Arkady Rudnitsky   +9 more
openaire   +2 more sources

AND logic gate for optical processing

2011 International Conference on Electric Information and Control Engineering, 2011
We propose a AND logic gate based on photonic crystal with cylindrical silicon structure. It takes advantages of the device sizes are drastically reduced to a scale of a few tens of micrometers and the easy-to-implement logic function. Furthermore, the multi-input AND gate can apply to all-optical Arithmetic Logic Unit (ALU) devices of photon computer ...
null Kun-Yi Lee   +8 more
openaire   +1 more source

Fiber-optic logic gate

Applied Physics Letters, 1985
Operation of a fiber-optic logic gate is demonstrated for the first time. The principle of operation is based upon the intensity-dependent polarization rotation in birefringent fibers. Using a birefringent fiber combined with polarizers in the crossed state, the ON/OFF state of an AND operation is clearly observed with an extinction ratio of ...
Ken-ichi Kitayama   +2 more
openaire   +1 more source

Integrated-optic logic gates

Topical Meeting on Integrated and Guided-Wave Optics, 1986
The use of integrated optics to perform logic and computation was proposed earlier by Taylor1 based on interconnected directional coupler switches and intensity Mach-Zehnder modulators. We apply the principle of polarization conversion and discrimination in integrated optical format to perform various logic functions.
Talal Findakly, B. Dougfierty, J. Moen
openaire   +1 more source

Optical programmable triple-in binary logic gate

Applied Optics, 1992
Based on the dual-rail encoding concept, beam splitting, and beam combining, an optical logic gate capable of performing all 256 logic functions of three input binary patterns is proposed. The gate is programmed by polarization customizing. The full adder and the full subtractor are thus suggested, and the experimental results are presented.
Z, Zhang, L, Liu
openaire   +2 more sources

Optical pulse controlled optical logic NOT gate

SPIE Proceedings, 2005
A multi-port optical logic NOT gate based on multimode interference principle is proposed. To achieve different output states at the output ports of the device, plasma dispersion effect is applied to get phase difference between signal light and control light.
Zhangjian Li, Baojun Li
openaire   +1 more source

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