Results 21 to 30 of about 18,742,671 (287)

All-optical flip flop based on a symmetric Mach-Zehnder switch with a feed-back loop and multiple forward set/reset signals [PDF]

open access: yes, 2007
The paper proposed an improved performance for optical flip-flop using symmetric Mach-Zehnder interformeter with a feedback and multiple forward configurations.
Ghassemlooy, Zabih   +2 more
core   +1 more source

All-Optical Logic Gates Based on Nonlinear Slot Waveguide Couplers [PDF]

open access: yes, 2006
A novel design of all-optical logic gates based on nonlinear slot-waveguide couplers is proposed. NOT, OR, and AND logic gates can be realized by a simple single optical-directional coupler configuration.
Fujisawa, Takeshi, Koshiba, Masanori
core   +1 more source

Metal−Organic Framework-Based Ultrafast Logic Gates for High-Security Optical Encryption

open access: yesUltrafast Science, 2023
Optical logic gates call for materials with giant optical nonlinearity to break the current performance bottleneck. Metal–organic frameworks (MOFs) provide an intriguing route to achieve superior optical nonlinearity benefitting from structural diversity
Junhong Yu   +8 more
doaj   +1 more source

Band-Gap Solitons in Nonlinear Photonic Crystal Waveguides and Their Application for Functional All-Optical Logic Gating

open access: yesPhotonics, 2021
This review paper summarizes our previous findings regarding propagation characteristics of band-gap temporal solitons in photonic crystal waveguides with Kerr-type nonlinearity and a realization of functional and easily scalable all-optical NOT, AND and
Vakhtang Jandieri   +6 more
doaj   +1 more source

Realization of Ultra-compact All-optical Universal NOR Gate on Photonic Crystal Platform [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2021
Background and Objectives: Universal NOR gate is one of the most important gates in digital design. The all-optical NOR gate can be designed using photonic crystals.
F. Parandin
doaj   +1 more source

Tunable all-optical logic gates based on nonreciprocal topologically protected edge modes [PDF]

open access: yes, 2023
All-optical logic gates have been studied intensively for their potential to enable broadband, low-loss, and high-speed communication. However, poor tunability has remained a key challenge in this field.
He, Panpan   +6 more
core   +1 more source

A Non-Volatile Tunable Ultra-Compact Silicon Photonic Logic Gate

open access: yesNanomaterials, 2022
Logic gates, as one of the most important basic units in electronic integrated circuits (EICs), are also equally important in photonic integrated circuits (PICs). In this study, we proposed a non-volatile, ultra-compact all-photonics logic gate.
Zheng Peng   +11 more
doaj   +1 more source

IST-LASAGNE: Towards all-optical label swapping employing optical logic gates and optical flip-flops [PDF]

open access: yes, 2005
The Information Society Technologies - all-optical LAbel SwApping employing optical logic Gates in NEtwork nodes (IST-LASAGNE) project aims at designing and implementing the first, modular, scalable, and truly all-optical photonic router capable of ...
Holm-Nielsen, P.V.   +91 more
core   +2 more sources

Implementation of a Reconfigurable Optical Logic Gate Using a Single I/Q Modulator With Direct Detection

open access: yesIEEE Photonics Journal, 2016
We propose and investigate a new scheme to realize all-optical logic gates using a single I/Q modulator with direct detection. Both intensity and phase of the optical signal are utilized to represent the four different states of two binary inputs ...
Xianfeng Tang   +7 more
doaj   +1 more source

All-optical controlled-NOT logic gate achieving directional asymmetric transmission based on metasurface doublet

open access: yesOpto-Electronic Advances, 2023
Optical logic gates play important roles in all-optical logic circuits, which lie at the heart of the next-generation optical computing technology. However, the intrinsic contradiction between compactness and robustness hinders the development in this ...
Yijia Huang   +11 more
doaj   +1 more source

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