Results 31 to 40 of about 1,151 (204)

A Four-Channel DWDM Tunable Add/Drop Demultiplexer Based on Silicon Waveguide Bragg Gratings

open access: yesIEEE Photonics Journal, 2019
We demonstrate a thermally tunable four-channel add/drop demultiplexer based on silicon grating-assisted contra-directional couplers (contra-DCs) for 200 GHz dense wavelength division multiplexing (DWDM) systems.
Debin Mu   +8 more
doaj   +1 more source

QoS multicast tree construction in IP/DWDM optical internet by bio-inspired algorithms [PDF]

open access: yes, 2010
Copyright @ Elsevier Ltd. All rights reserved.In this paper, two bio-inspired Quality of Service (QoS) multicast algorithms are proposed in IP over dense wavelength division multiplexing (DWDM) optical Internet.
Wang, X   +14 more
core   +1 more source

INVESTIGATION ON HYBRID WDM (DWDM+CWDM) FREE SPACE OPTICAL COMMUNICATION SYSTEM [PDF]

open access: yesICTACT Journal on Communication Technology, 2015
Free Space Optical (FSO) communication is being realized as an effective solution for future accessing networks, offering light passed through air. The performance of FSO can be primarily degraded by various atmospheric attenuation namely, rain, fog ...
S. Robinson, S. Jasmine, R. Pavithra
doaj  

On the 100 Gbps DWDM with Optical Carrier Suppression Modulation

open access: yesOpen Computer Science, 2021
This paper investigates the transmission performance of 16-channel DWDM (Dense Wavelength Division Multiplexing) system with two complex Optical Differential Quadrature Phase Shift Keying modulator configurations using 2 LiNb MZM (Mach-Zehnder Modulator)
Huszaník Tomáš   +2 more
doaj   +1 more source

PERENCANAAN JARINGAN TRANSPORT DENSE WAVELENGTH DIVISION MULTIPLEXING (DWDM) MENGGUNAKAN APLIKASI CISCO PACKET TRACER

open access: yesJurnal Ilmiah Teknik Informatika dan Komunikasi, 2023
Communication and information technology plays a very important role in various activities. Data communication which is part of a technological development, provides enormous benefits great for its users to expedite activities. For example in activities shipping goods using sea transportation which integrates various components for the shipping process,
null Dhabit Fauzan   +3 more
openaire   +1 more source

Analisis Perbandingan Penggunaan Penguat Optik terhadap Pengaruh Four Wave Mixing pada Sistem Dense Wavelength Division Multiplexing [PDF]

open access: yes, 2023
Research and development of telecommunications technology continues to progress to meet human needs in communicating. Fiber optic communication system is one of the best technologies used for today's telecommunication needs.
Sembiring, Amadeus
core  

Monolithic 1 × 8 DWDM Silicon Optical Transmitter Using an Arrayed-Waveguide Grating and Electro-Absorption Modulators for Switch Fabrics in Intra-Data-Center Interconnects

open access: yesMicromachines, 2020
In this study, we propose an eight-channel monolithic optical transmitter using silicon electro-absorption modulators (EAMs) based on free-carrier injection by Schottky junctions. The transmitter consists of a 1 × 8 silicon arrayed-waveguide grating (AWG)
Uiseok Jeong   +3 more
doaj   +1 more source

DESIGN OF DPSK MODULATOR AND DIRECT DETECTION RECEIVER FOR DWDM BASED OPTICAL COMMUNICATION SYSTEM [PDF]

open access: yesICTACT Journal on Communication Technology, 2016
In this paper a 16-bit differential phase shift keying (DPSK) modulator is designed for 32 dense wavelength division multiplexing (DWDM) channels. The DWDM channels are designed with 0.8nm separation in wavelength and operated at 4dBm input power. In the
Gurjit Kaur   +2 more
doaj  

Wavelength Assignment in Hybrid Quantum-Classical Networks

open access: yesScientific Reports, 2018
Optimal wavelength assignment in dense-wavelength-division-multiplexing (DWDM) systems that integrate both quantum and classical channels is studied. In such systems, weak quantum key distribution (QKD) signals travel alongside intense classical signals ...
Sima Bahrani   +2 more
doaj   +1 more source

Performance Enhancement and Capacity Enlargement for a DWDM-PON System Utilizing an Optimized Cross Seeding Rayleigh Backscattering Design

open access: yesApplied Sciences, 2019
In this work, a record of 16 channels, with future channel spacing in the telecommunication standardization sector of the International Telecommunications Union G.694.1 (ITU-T G.694.1) for Dense Wavelength Division Multiplexing (DWDM) (i.e., 12.5 GHz ...
Nazmi A. Mohammed, Ahmed Hamdi Mansi
doaj   +1 more source

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