Results 11 to 20 of about 579,349 (293)
Generation of the First-Order OAM Modes in Ring Fibers by Exerting Pressure Technology
IEEE Photonics Journal, 2017 We have proposed an effective method of generating the first-order orbital angular momentum (OAM) modes in ring fibers. The first-order OAM modes (${\rm{L = \pm 1}}$ ) can be represented as the linear superposition of the ${\rm{HE}}_{{21}}^{{\rm{even}}}$
Yu Zhang +9 more
doaj +1 more source
High Bandwidth Utilization DWBA Algorithm for Upstream Channel in NG-EPON
IEEE Access, 2022 In this paper, an (ONU-load and RTTs)-based (OLR) dynamic wavelength and bandwidth allocation (DWBA) algorithm for upstream channel in next-generational Ethernet passive optical network (NG-EPON) is proposed.
Jianqiang Hui +3 more
doaj +1 more source
Optical monitoring system for scalable all-optical networks [PDF]
, 1997 High traffic and high capacity communications are believed to become cost-effective with the use of all-optical networks based on OFDM (optical frequency division multiplexing). In such networks, new strategies for OA and M (operation, administration and
Amrani, Abdelhafid +2 more
core +1 more source
Wavelength Reuse for Short-Reach Optical Access Network Utilizing MDM
IEEE Photonics Journal, 2017 Wavelength reuse has been proposed as an effective solution to realize colorless optical network units (ONUs) for next-generation passive optical network with simplified maintenance and reduced cost.
Yuanxiang Chen +9 more
doaj +1 more source
MDM-TDM PON Utilizing Self-Coherent Detection-Based OLT and RSOA-Based ONU for High Power Budget
IEEE Photonics Journal, 2016 A cost-effective mode-division-multiplexing and time-division-multiplexing passive optical network (MDM-TDM PON) utilizing a self-coherent detection for upstream signal at optical line terminal (OLT) and a high-gain reflective semiconductor optical ...
Yuanxiang Chen +11 more
doaj +1 more source
Results in Physics, 2022 Metal-backed materials establish the bridge linking traveling and surface waves for beam manipulation. Based on S-parameters, extracting the constitutive effective parameters (CEPs) is significant for characterizing their electromagnetic (EM) properties.
Feng-Yuan Han +8 more
doaj +1 more source
Weighted Inter-frame Averaging-Based Channel Estimation for CO-OFDM System
IEEE Photonics Journal, 2013 We propose an efficient channel estimation method for coherent optical orthogonal frequency-division multiplexing (CO-OFDM) based on weighted inter-frame averaging (WIFA), in which the channel estimation results of the adjacent frames are averaged to ...
Hui Zhao +7 more
doaj +1 more source
Quantum optical waveform conversion [PDF]
, 2010 Currently proposed architectures for long-distance quantum communication rely on networks of quantum processors connected by optical communications channels [1,2].
A. P. Vandevender +3 more
core +2 more sources
Nature Communications, 2017 The signalling scheme used in access networks require electrical bandwidths many times greater than subscribers can utilise. Here, the authors describe a promising approach to achieve bidirectional transmission with bandwidth-efficient yet low-complexity
M. S. Erkılınç +6 more
doaj +1 more source
Broadband Photonic Down-Conversion Preprocessor for ADC With Arcsine Equalization
IEEE Photonics Journal, 2020 It is a challenge to convert broadband millimeter-wave signals directly with electronic analog-to-digital converters (ADCs). The photonic down-conversion preprocessor is a promising solution.
Rui Guo +6 more
doaj +1 more source