Results 1 to 10 of about 123,133 (293)

High-speed and high-contrast two-channel all-optical modulator based on solution-processed CdSe/ZnS quantum dots [PDF]

open access: yesScientific Reports, 2022
Recently, all-optical modulators are potentially the most promising candidate to achieve high-bit rate modulation in high-speed all-optical communication technologies and signal processing.
Hannaneh Dortaj   +2 more
doaj   +2 more sources

All-optical modulator with photonic topological insulator made of metallic quantum wells [PDF]

open access: yesNanophotonics
All-optical modulators hold significant prospects for future information processing technologies for they are able to process optical signals without the electro-optical convertor which limits the achievable modulation bandwidth.
Wang Haiteng   +8 more
doaj   +2 more sources

Integrated ultra-high-performance graphene optical modulator [PDF]

open access: yesNanophotonics, 2022
With the increasing need for large volumes of data processing, transport, and storage, optimizing the trade-off between high-speed and energy consumption in today’s optoelectronic devices is getting increasingly difficult.
Heidari Elham   +7 more
doaj   +2 more sources

Silicon Optical Modulator Simulation [PDF]

open access: yesFrontiers in Physics, 2015
We developed a way of predicting and analyzing high speed optical modulator. Our research adopted a bottom-up approach to consider high-speed optical links using an eye diagram.
Soon Thor LIM   +3 more
doaj   +2 more sources

Novel Optical Modulator Photonic Device Based on TiN/Ti3C2 Heterojunction [PDF]

open access: yesSensors
Due to the ability of optical modulators to achieve rapid modulation of optical signals, meeting the demands of high-speed data transmission, modulators based on different novel nanomaterials have become one of the research hotspots over the past dacade.
Zexin Zhou   +8 more
doaj   +2 more sources

Retardance measurement by spatially probing the sample with optical vortices [PDF]

open access: yesEPJ Web of Conferences, 2022
Modern optical systems utilize various degrees of freedom, such as polarization, for shaping and controlling the light. Common representative of such a component is spatial light modulator (SLM), consisting of liquid crystal display, allowing for ...
Fordey Tomáš, Schovánek Petr
doaj   +1 more source

Optical spatial modulation design [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
Visible light communication (VLC) systems are inherently signal-to-noise ratio (SNR) limited due to link budget constraints. One favourable method to overcome this limitation is to focus on the pre-log factors of the channel capacity. Multiple-input multiple-output (MIMO) techniques are therefore a promising avenue of research.
T. Cogalan, H. Haas, E. Panayirci
openaire   +4 more sources

Large wavelength bandwidth Mach-Zehnder modulator based on optical intensity equalization structure

open access: yesFrontiers in Physics, 2022
In this paper, we propose a large wavelength bandwidth Mach-Zehnder modulator based on light intensity equalization structure. The modulator is designed into a symmetric structure to increase the optical operating bandwidth.
Heming Hu   +6 more
doaj   +1 more source

Calculation of MTF For Optical Disk Modulator By Using Fractal Function [PDF]

open access: yesEngineering and Technology Journal, 2009
Optical modulator is an important component in optical systems. It is a device, which changes the angle between the vision line to the target and coordinate to electrical signal. The optical modulator modulates the optical signal by a frequency depending
Abdulrazak A. S. Mohammad   +1 more
doaj   +1 more source

Non-resonant recirculating light phase modulator

open access: yesAPL Photonics, 2022
High efficiency and a compact footprint are desired properties for electro-optic modulators. In this paper, we propose, theoretically investigate, and experimentally demonstrate a recirculating phase modulator, which increases the modulation efficiency ...
Haijin Huang   +9 more
doaj   +1 more source

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