Results 11 to 20 of about 5,294 (228)

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

Capacity of Wavelength and Time Division Multiplexing for Quasi-Distributed Measurement Using Fiber Bragg Gratings

open access: yesAdvances in Electrical and Electronic Engineering, 2015
In this paper, an analysis of the use of wavelength and time division multiplexing techniques for quasi-distributed measurement in uniform fiber Bragg gratings is presented.
Marcel Fajkus   +6 more
doaj   +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

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 Silicon-Based On-Chip 64-Channel Hybrid Wavelength- and Mode-Division (de)Multiplexer

open access: yesPhotonics, 2023
An on-chip 64-channel hybrid (de)multiplexer for wavelength-division multiplexing (WDM) and mode-division multiplexing (MDM) is designed and demonstrated on a 220 nm SOI platform for the demands of large capacity optical interconnections.
Yuxiang Yin   +6 more
doaj   +1 more source

Modified Unequally Spaced Channels Wavelength Division Multiplexing System

open access: yesمجلة علوم ذي قار, 2019
The channels contributed in creating new pulse during the four-wave mixing (FWM) process are a subject of two features: the first is the fact that all channels are not working with probability %100 , but with p probability.
Hassan Yasser
doaj   +4 more sources

Design of Dual-resonator Six-channel WDM based on 2-D Photonic Crystal

open access: yesGuangtongxin yanjiu, 2023
In order to solve the problem of all-optical communication network capacity and spectral efficiency, a two-cavity six-channel Wavelength Division Multiplexer (WDM) based on the coupling characteristics of point-defect cavity and line-defect waveguide of ...
SU Mu-yang   +4 more
doaj  

Angled multimode interferometer for bidirectional wavelength division (de)multiplexing [PDF]

open access: yesRoyal Society Open Science, 2015
We have demonstrated a bidirectional wavelength division (de)multiplexer (WDM) on the silicon-on-insulator platform using two 4-channel angled multimode interferometers (AMMIs) sharing the same multimode interference waveguide.
Y. Hu   +8 more
doaj   +1 more source

A SURVEY ON WAVELENGTH DIVISION MULTIPLEXING (WDM) NETWORKS [PDF]

open access: yesICTACT Journal on Communication Technology, 2010
Communication networks have emerged as a source of empowerment in today’s society. At the global level, the Internet is becoming the backbone of the modern economy.
G. Ramesh   +2 more
doaj  

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