Results 21 to 30 of about 2,964 (249)

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  

A Pulse Shaping Based Optical Transmission System of 128QAM for DWDM with N × 904 Gbps

open access: yesApplied Sciences, 2019
In this paper, we propose an optical transmission system of 128 quadrature amplitude modulation for dense wavelength division multiplexing. In such a system, Gaussian optical filtering is used to get an appropriate photonic carrier.
Guang Li, Jianqing Li
doaj   +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  

Improving FWM efficiency in bi-directional ultra DWDM-PON networking centered light source by using PMD emulator

open access: yesResults in Physics, 2020
The optical networks provides a high performance data networking and secured way to communicate. New generation optical networks demands high input power and low channel spacing in Wavelength-Division Multiplexing (WDM).
Habib Ullah Manzoor   +8 more
doaj   +1 more source

An Eight-Channel C-Band Demux Based on Multicore Photonic Crystal Fiber

open access: yesNanomaterials, 2018
A novel eight-channel demux device based on multicore photonic crystal fiber (PCF) structures that operate in the C-band range (1530–1565 nm) has been demonstrated. The PCF demux design is based on replacing some air-hole areas with lithium niobate
Dror Malka, Gilad Katz
doaj   +1 more source

A comparative study of the performance of seven- and 63-chip optical code-division multiple-access encoders and decoders based on superstructured fiber Bragg gratings [PDF]

open access: yes, 2001
We report a range of elementary optical coding and decoding experiments employing superstructured fiber Bragg grating (SSFBG) components: first, we perform a comparative study of the relative merits of bipolar and unipolar coding: decoding schemes and ...
Teh, Peh Chiong   +3 more
core   +1 more source

Impact of High Speed Differential Quadrature Amplitude Modulation using Hybrid Optical Amplifier for Super Dense Wavelength Division Multiplexing System [PDF]

open access: yes, 2020
In this paper, a Differential Quadrature Amplitude Modulation (DQAM) technique for 200 x100 Gbps Super Dense Wavelength Division Multiplexing (SD-WDM) system is proposed.
kumar, chakresh ; Guru Gobind Singh Indraprastha University, Sector -16 C, Dwarka, New Delhi   +1 more
core   +2 more sources

Characterization and Application of Solitons in a High Nonlinearity Optical Link with Dense Wavelength Division Multiplexing (DWDM) and Ultra-Dense Wavelength Division Multiplexing (UDWDM) Technics

open access: yesJournal of Engineering Research and Reports, 2021
The constantly growing needs in terms of speed and bandwidth, especially all services using data has become greedy. Today optical fiber is the medium of choice for many advantages over others channels. although the optical fiber has taken the label of transmission channels, we won’t be able to do without its nonlinear character and dispersions, which ...
Badila Nkodia Chilperic   +6 more
openaire   +2 more sources

3D design and analysis of an electro-optically tunable athermal and polarization-insensitive ring resonator-based add-drop filter for DWDM systems

open access: yesHeliyon, 2022
Dense Wavelength Division Multiplexing system-based optical networks are currently the most appropriate solutions for all-optical networks that efficiently utilize the large bandwidth offered by optical fiber networks.
Filston Rukerandanga   +2 more
doaj   +1 more source

Characterisation of ultra-narrow band filters for diode laser systems based on dense wavelength division multiplexing

open access: yes, 2022
S.15-16We present a measurement platform to characterise combining elements used for dense wavelength division multiplexing, such as dielectric edge filters or Volume Bragg Gratings (notch filters).
Traub, M.   +4 more
core   +1 more source

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