Results 21 to 30 of about 5,452 (212)

Interfacial Roughness and Temperature Dependence of Narrow Band Thin Film Filters for the DWDM Passive Optical Networks

open access: yesAdvances in Electrical and Electronic Engineering, 2016
In the design of new components for passive optical networks (PONs), the non-ideal properties are worth considering. In this paper the influence of interface roughness and temperature changes on final transmittance of downstream channels blocking filters
Lubomir Scholtz   +2 more
doaj   +1 more source

Analisis Perbandingan Kinerja Pengkodean Kanal Non-Return-to-Zero (NRZ) dan Return-to-Zero (RZ) pada Rancangan Jaringan Long-haul Dense Wavelength Division Multiplexing (DWDM)

open access: yesBuletin Pos dan Telekomunikasi: Media Komunikasi Ilmiah, 2019
Abstrak Perkembangan jangkauan dan penggunaan internet mendorong pengembangan penyediaan layanan dengan transmisi data yang cepat dan kapasitas yang besar seperti layanan berbasis serat optik.
Olivian Bagas Pratama   +2 more
doaj   +1 more source

Solutions for 80 km DWDM Systems [PDF]

open access: yesOptical Fiber Communication Conference, 2015
We review currently discussed solutions for 80 km DWDM transmission targeting inter data-center connections at 100G and 400G line rates. PDM-64QAM, PAM4 and DMT are investigated, while the focus lies on directly detected solutions.
Annika Dochhan   +3 more
openaire   +3 more sources

Analytical Investigation of 8-Channel Optical Wavelength Division Multiplexing Communication System [PDF]

open access: yesEngineering and Technology Journal, 2010
In this paper, the theoretical 8-channel Dense Wave Division Multiplexing(DWDM) telecommunication system is demonstrated. Laser Diode (LD) sourcewas used for each channel, with external modulator, therefore making the systemwork at high bit rate.
Mohammed Hussian Ali
doaj   +1 more source

Robust transport of high-speed data in a topological valley Hall insulator. [PDF]

open access: yesNanophotonics
Abstract Photonic topological insulators provide robust transport of light, enabling interesting phenomena such as unidirectional light propagation and immunity to disorder. The discovery of how to effectively break time reversal symmetry was an important development in the field of photonic topological insulators. Knowledge on how to implement designs
Sohn BU   +4 more
europepmc   +2 more sources

2 x 80 Gbit/s DWDM Bidirectional Wavelength Reuse Optical Wireless Transmission [PDF]

open access: yes, 2013
We demonstrate a practical 2×80 Gbit/s dense wavelength division multiplexing (DWDM) bidirectional short-range optical wireless link. The measured power penalties for the bidirectional transmission are less than 0.8 and 0.2 dB compared to the back-to ...
Ghassemlooy, Zabih   +5 more
core   +1 more source

Performance Comparison of Different Modulation Formats for a 40 Gbps Hybrid Optical CDMA/DWDM System against ISI and FWM

open access: yesPhotonics, 2022
This paper carries out a numerical simulation investigating three different modulation formats: carrier suppressed return to zero (CSRZ), modified duobinary return to zero (MDRZ) and return to zero (RZ).
Naif Alsowaidi   +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

Redes ópticas DWDM: diseño e implementación [PDF]

open access: yes, 2010
To day we are witnessing a revolution in advanced communications, derived primarily from the liberalization of the sector and the growth of Internet users, data services and mobile telephony.
Téllez Silva, Iván Darío   +2 more
core   +2 more sources

A 50-m/320-Gb/s DWDM FSO Communication With Afocal Scheme

open access: yesIEEE Photonics Journal, 2016
This paper proposes and presents the experimental demonstration of 320-Gb/s free-space optical (FSO) communication based on dense-wavelength-division-multiplexing (DWDM) technology and afocal scheme.
Wen-Shing Tsai   +6 more
doaj   +1 more source

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