Results 21 to 30 of about 44,400 (366)

Radio-over-Fibersystem Capacity Improvements by Using Wavelength Division Multiplexing and Subcarrier Multiplexing Techniques [PDF]

open access: yesEngineering and Technology Journal, 2015
Radio-over-Fiber (RoF) system refers to the radio signals which are modulated with optical signal and transmitted over optical fiber link from Central Office (CO) to the Remote Nodes (RNs).In this paper, RoF system with Wavelength Division Multiplexing ...
Mustafa A. Jalil, Aied K. AL-Samarrie
doaj   +1 more source

Energy-efficiency improvements for optical access [PDF]

open access: yes, 2014
This article discusses novel approaches to improve energy efficiency of different optical access technologies, including time division multiplexing passive optical network (TDM-PON), time and wavelength division multiplexing PON (TWDM-PON), point-to ...
Anthapadmanabhan, P   +8 more
core   +1 more source

Multiclass scheduling algorithms for the DAVID metro network [PDF]

open access: yes, 2004
—The data and voice integration over dense wavelength-division-multiplexing (DAVID) project proposes a metro network architecture based on several wavelength-division-multiplexing (WDM) rings interconnected via a bufferless optical switch called Hub. The
Andrea Bianco   +8 more
core   +2 more sources

Fault Tolerant Dense Wavelength Division Multiplexing Optical Transport Networks

open access: yesJournal of Telecommunications and Information Technology, 2023
Design of fault tolerant dense wavelength division multiplexing (DWDM) backbones is a major issue for service provision in the presence of failures. The problem is an NP-hard problem.
Yousef S. Kavian   +4 more
doaj   +1 more source

Spatially multiplexed single-photon sources based on incomplete binary-tree multiplexers [PDF]

open access: yes, 2021
We propose two novel types of spatially multiplexed single-photon sources based on incomplete binary-tree multiplexers. The incomplete multiplexers are extensions of complete binary-tree multiplexers, and they contain incomplete branches either at the input or at the output of them. We analyze and optimize these systems realized with general asymmetric
arxiv   +1 more source

Optical Networking Beyond WDM

open access: yesIEEE Photonics Journal, 2012
Wavelength-division multiplexing (WDM) has been the workhorse of data networks, accommodating exponential traffic growth for two decades. Recently, however, progress in WDM capacity research has markedly slowed down as experiments are closely approaching
Peter J. Winzer
doaj   +1 more source

High-capacity free-space optical communications using wavelength- and mode-division-multiplexing in the mid-infrared region

open access: yesNature Communications, 2022
A 300-Gbit/s free-space optical communication system is demonstrated in the mid-IR wavelength region by using both wavelength- and mode-division multiplexing.
Kaiheng Zou   +16 more
doaj   +1 more source

Nonlinear Frequency-Division Multiplexing in the Focusing Regime [PDF]

open access: yes, 2016
Achievable rates of the nonlinear frequency-division multiplexing (NFDM) and wavelength-division multiplexing (WDM) subject to the same power and bandwidth constraints are computed as a function of transmit power in the standard single-mode fiber.
Alvarado, Alex   +4 more
core   +2 more sources

Design and Study on 25 Gbit/s Optical Transmitter Module based on Silicon Optical Scheme

open access: yesGuangtongxin yanjiu, 2021
With the rapid development of optical communication technology, the capacity of optical transmission increases dramatically. The flexible requirements for the management and scheduling of Dense Wavelength Division Multiplexing (DWDM) network systems also
Xuan-xuan CHENG   +8 more
doaj   +1 more source

A Coaxially Integrated Photonic Orbital Angular Momentum Beam Multiplexer [PDF]

open access: yes, 2016
We demonstrate an integrated photonic orbital angular momentum beam multiplexer consisting of four nested arc waveguide gratings. Well-defined OAM mode emissions over wide bandwidth of 1-nm enables simultaneous wavelength division multiplexing and OAM ...
Cai, Xinlun   +8 more
core   +1 more source

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