Results 21 to 30 of about 176,830 (290)
Resolution Enhancement in Coherent Diffraction Imaging Using High Dynamic Range Image
Photonics, 2021 In a coherent diffraction imaging (CDI) system, the information of the sample is retrieved from the diffraction patterns recorded by the image sensor via multiple iterations.
Yuanyuan Liu +5 more
doaj +1 more source
Multiple-Ring-Core FM-EDF for Weakly-Coupled MDM Amplification With Low Differential Modal Gain
IEEE Photonics Journal, 2021 Recently weakly-coupled mode-division multiplexing (MDM) transmission systems and networks based on ultralow-modal-crosstalk few-mode fiber (FMF) have attracted much interest, for which optical amplification technologies with low modal crosstalk and two ...
Jinglong Zhu +7 more
doaj +1 more source
SDM-WDM ROADM Based on Direct-Laser-Writing SDM Core Separator
IEEE Photonics Journal, 2022 Weakly-coupled space division multiplexing (SDM) techniques based on multi-core fibers (MCF) have attracted great attention for the capacity enhancement of optical interconnect systems and networks. In this paper, we propose a novel direct-laser-writing (
Yu Yang +8 more
doaj +1 more source
Optical Communications and Networks [PDF]
IEEE Communications Magazine, 2020 As the second issue in 2020 of the Optical Communications and Networks Series (OCNS), this series selects articles that cover interesting advances on devices, systems and networks regarding optical communications and networking. We are pleased to witness active innovations in this area, which will make the data exchange and processing in the future ...
Mohamed-Slim Alouini +2 more
openaire +3 more sources
High-Sensitive Refractive Index Sensing Enabled by Topological Charge Evolution
IEEE Photonics Journal, 2020 A high-sensitive refractive index sensor is proposed and demonstrated by utilizing merging bound states in the continuum, namely a set of integer topological charges in the momentum space.
Jiaxin Lv +5 more
doaj +1 more source
Adaptive Probabilistic Shaping Using Polar Codes for FSO Communication
IEEE Photonics Journal, 2022 An adaptive polar coded probabilistic shaping scheme for free-space optical (FSO) communication is proposed and demonstrated to improve transmission performance.
Xiaoyu Liu +4 more
doaj +1 more source
Single Subcarrier Gold Sequences Modulated Timing Synchronization for Upstream OFDMA-PON
IEEE Photonics Journal, 2017 In this paper, we propose a timing synchronization scheme based on Gold sequences modulated on a single subcarrier for the orthogonal frequency-division multiple access passive optical network (OFDMA-PON).
Xizhen Peng +3 more
doaj +1 more source
Silicon-Based Graphene Electro-Optical Modulators
Photonics, 2022 With the increasing demand for capacity in communications networks, the use of integrated photonics to transmit, process and manipulate digital and analog signals has been extensively explored.
Ming Jin +6 more
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background The delipid extracorporeal lipoprotein filter from plasma (DELP) treatment can effectively reduce blood lipid, increase blood flow, and improve neurological deficits in patients with acute ischemic stroke (AIS). However, its effect on vision and retinal microcirculation in stroke patients has never been reported.
Ning Li +9 more
wiley +1 more source
Optical networks play a crucial role in todays digital topography, enabling the high-speed and reliable transmission of vast amounts of data over optical fibre for long distances. This paper provides an overview of optical networks, especially emphasising on their evolution with time.
Vivek Ashok Bohara, Swaminathan R
+5 more sources