Results 21 to 30 of about 4,260 (262)

Low-Complexity Chromatic Dispersion Equalization FIR Digital Filter for Coherent Receiver

open access: yesPhotonics, 2022
This paper proposes a novel and efficient low-complexity chromatic dispersion equalizer (CDE) based on finite impulse response (FIR) filter architecture for polarization-multiplexed coherent optical communication systems.
Zicheng Wu   +4 more
doaj   +1 more source

FIBER DISPERSION MEASUREMENTS USING MACH-ZEHNDER INTERFEROMETER

open access: yesTạp chí Khoa học
We present an efficient technique for measuring chromatic dispersion using a modified Mach-Zehnder interferometer in conjunction with with a supercontinuum light source.
Le Canh Trung
doaj   +1 more source

Theoretical Analysis of the Optical Propagation Characteristics in a Fiber-Optic Surface Plasmon Resonance Sensor

open access: yesSensors, 2013
Surface plasmon resonance (SPR) sensor is widely used for its high precision and real-time analysis. Fiber-optic SPR sensor is easy for miniaturization, so it is commonly used in the development of portable detection equipment.
Xiaolin Zheng   +5 more
doaj   +1 more source

Novel High Negative Chromatic Dispersion Photonic Crystal Fiber with Low Confinement Loss [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2016
In this paper, we propose a novel dual core concentric photonic crystal fiber with high negative chromatic dispersion and low confinement loss. Finite element method with perfectly matched layers (PMLS) is used to investigate the guiding properties.
OUADAH Mohammed Chamse Eddine   +1 more
doaj  

Highly Birefringent Two-Mode Photonic Crystal Fibers With Near-Zero Flattened Dispersion

open access: yesIEEE Photonics Journal, 2011
Through introducing three sizes of holes in cladding, highly birefringent two-mode photonic crystal fibers (PCFs) are proposed. The full-vector finite-element method (FEM) is applied in the calculation of the transverse electric field vector ...
Feifei Shi   +4 more
doaj   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee   +17 more
wiley   +1 more source

Accurate Chromatic Dispersion Characterization of Photonic Integrated Circuits

open access: yesIEEE Photonics Journal, 2012
An accurate technique to characterize chromatic dispersion and its slope versus wavelength is reported. The method is based on a heterodyne Mach-Zehnder interferometer, which is immune to thermal phase noise by using a counterpropagating reference beam ...
S. Mas, J. Matres, J. Marti, C. J. Oton
doaj   +1 more source

The Ways of Reducing the Degradation of Optical Signals and Study the Effect of the Degradation on the Quality of Optical Fiber Communication Systems [PDF]

open access: yesEngineering and Technology Journal, 2015
This paper is to analyze the impact of optical signal degradation on the quality of optical fiber communication systems, and enhance the way of reducing the signal degradation mechanism.
Saad Z. Sekhi
doaj   +1 more source

Multilayer Soft Photonic Arrays Inspired by Cephalopod Skin for High‐Density, Independent, and Multimodal Actuation

open access: yesAdvanced Functional Materials, EarlyView.
A vertically stacked, DEA‐driven photonic array inspired by cephalopod skin, featuring highly crystalline colloidal crystal gels with vivid color, low FWHM and scalability is presented. The multilayer design removes lateral pixel interference, achieving near‐100% fill factor with fully independent RGB actuation.
Maga Kim   +11 more
wiley   +1 more source

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