Results 31 to 40 of about 221,734 (291)

High-Sensitivity Sensing for Relative Humidity and Temperature Based on an Optoelectronic Oscillator Using a Polyvinyl Alcohol-Fiber Bragg Grating-Fabry Perot Filter

open access: yesIEEE Access, 2019
In this paper, a relative humidity (RH) and temperature sensing scheme with high sensitivity based on an optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. A polyvinyl alcohol-Fiber Bragg grating-Fabry Perot (PVA-FBG-FP) filter,
Naihan Zhang   +8 more
doaj   +1 more source

A Sensitized Plastic Fiber Sensor for Multi-Point Bending Measurement Based on Deep Learning

open access: yesIEEE Photonics Journal, 2021
As we all know, the change of mode interference caused by the curvature change in multi-mode fiber (MMF) can be well represented as a fiber specklegram recorded by CCD (Charge-coupled Device).
Shun Lu   +3 more
doaj   +1 more source

Deep subwavelength graphene-dielectric hybrid plasmonic waveguide for compact photonic integration

open access: yesResults in Physics, 2021
In this paper, we propose a novel graphene-dielectric hybrid plasmonic waveguide (GDHPW). The fundamental hybrid mode characteristics guided by the GDHPW are numerically investigated.
Xueqing He   +5 more
doaj   +1 more source

Adaptive Beamforming and Adaptive Modulation-Assisted Network Performance of Multiuser Detection-Aided FDD and TDD CDMA Systems

open access: yes, 2007
The network performance of a frequency division duplex and time division duplex (TDD) code division multiple access (CDMA)-based system is investigated using system parameters similar to those of the Universal Mobile Telecommunication System.
Blogh, J.S., Hanzo, L., Ni, S.
core   +1 more source

MODERN TELECOMMUNICATION NETWORKS IN THE AERONAUTICAL TELECOMMUNICATION NETWORK (ATN)

open access: yesAviation, 2006
This paper summarizes the results of a study of modern telecommunication technology in the Aeronautical Telecommunication Network. The ATN is a data communications inter‐network that provides its users a robust and reliable Air/Ground and Ground/Ground communications service.
openaire   +4 more sources

Analysis and Design of Leaky-Wave Antenna with Low SLL Based on Half-Mode SIW Structure

open access: yesInternational Journal of Antennas and Propagation, 2015
This paper presents a novel leaky-wave antenna based on the Half-Mode Substrate Integrated Waveguide (HMSIW) structure with low side lobe level. The effect of the structural parameters of the LWAs on the radiation performances is studied.
Jiaying Guo   +4 more
doaj   +1 more source

All-Optical Temporal Differentiator Based on the Axis-Aligned SFS Fiber Structure Filter

open access: yesIEEE Access, 2021
In this paper, the axis-aligned single mode- four mode- single mode (SFS) fiber structure filter is proposed to be an all-optical temporal differentiator.
Tingya Yin   +3 more
doaj   +1 more source

Refractive Index and Temperature Sensing Based on an Optoelectronic Oscillator Incorporating a Fabry–Perot Fiber Bragg Grating

open access: yesIEEE Photonics Journal, 2018
An ultrafast high-sensitivity refractive index (RI) and temperature-sensing system based on an optoelectronic oscillator (OEO) is proposed and demonstrated in this paper.
Yuguang Yang   +10 more
doaj   +1 more source

Strain and Temperature Discrimination Based on a Mach-Zehnder Interferometer With Cascaded Single Mode Fibers

open access: yesPhotonic Sensors, 2022
An in-fiber Mach-Zehnder interferometer is proposed for the discrimination of strain and temperature. The sensor is based on two cascaded standard single mode fibers using three peanut tapers fabricated by simple splicing.
Shiying Xiao   +4 more
doaj   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

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