Results 171 to 180 of about 4,945 (207)

Performance evaluation and enhancement of dense wavelength division multiplexing passive optical network DWDM-PON cross-seeding system with Rayleigh backscattering mitigation

Broadband Access Communication Technologies XIV, 2020
In this paper, a dense wavelength division multiplexing passive optical network (DWDM-PON) using cross seeding system is designed and evaluated. This system utilizes 16 channels with low channel spacing of 12.5 GHz. Upstream (US) capacity is enhanced to 2.5 Gb/s over 25 km single mode fiber (SMF) transmission. This optical network has a downstream (DS)
Martina N. Wadie, Ibrahim A. Elewah, Moustafa H. Aly   +2 more
openaire   +1 more source

CATO: trans-layer dense wavelength-division multiplexing (DWDM) network optimization. The clustering approach for large network design

Optical Fiber Communication Conference. Technical Digest Postconference Edition. Trends in Optics and Photonics Vol.37 (IEEE Cat. No. 00CH37079), 2002
DWDM network optimization and management problems include routing and wavelength assignment, protection switching, and resource allocation. A novel reduction technique in conjunction with a tested design tool, CATO, allows optimization of significantly larger networks.
A. Fumagalli, CERUTTI, Isabella, M. Tacca, D. Montgomery, I. Chlamtac, K. Pathak   +5 more
openaire   +1 more source

Dispersion compensation dense wavelength division multiplexing (DC DWDM) for nonlinearity analysis at various propagation distance and input power

2015 International Conference on Computer, Communications, and Control Technology (I4CT), 2015
Dense wavelength division multiplexing system is a system for coupling and transmitting the optical signals at different wavelength through the single fiber. Such technology is important in order to increase the capacity in optical communication system and to meet the growing demands of bandwidth. However, there are some limiting factors related to the
N. M. Nawawi, M. S. Anuar, C.B.M Rashidi, S.A Aljunid, A.K. Rahman, M.N. Junita, S. R. Abdullah   +6 more
openaire   +1 more source

GMPLS OSPF-TE Extensions in Support of Flexi-Grid Dense Wavelength Division Multiplexing (DWDM) Networks

2018
The International Telecommunication Union Telecommunication Standardization Sector (ITU-T) has extended its Recommendations G.694.1 and G.872 to include a new Dense Wavelength Division Multiplexing (DWDM) grid by defining a set of nominal central frequencies, channel spacings, and the concept of the "frequency slot".
X. Zhang, H. Zheng, R. Casellas, O. Gonzalez de Dios, D. Ceccarelli   +4 more
openaire   +1 more source

Optical-frequency control for dense wavelength-division-multiplexing (DWDM) networks by using sum-frequency generation in multilayer waveguides

OSA Annual Meeting, 1993
The intrinsic wavelength stability of current free-running DFB lasers implies that wavelengths in a DWDM network could be periodically measured and corrected to keep them within tolerances. The main element of the wavelength controller is based on the measurement of the surface emission angle of a sum-frequency (SF) signal generated by the interaction ...
Martin Guy, Bernard Villeneuve, Mikelis Svilans, Michel Têtu, Normand Cyr   +4 more
openaire   +1 more source

Good practice guide for the coexistence of time and frequency signals with data traffic in Dense Wavelength Division Multiplexing (DWDM) fibre optic networks

2022
Deliverable D5 of EMPIR project 18SIB06 "Advanced time/frequency comparison and dissemination through optical telecommunication networks", also known as Time and Frequency Over Optical Networks (TiFOON).
Turza, Krzysztof, Smotlacha, Vladimir, Krehlik, Przemyslaw, Curri, Vittorio, Rosenbusch, Peter   +4 more
openaire   +1 more source

Simultaneous frequency stabilization and high-power dense wavelength division multiplexing (HP-DWDM) using an external cavity based on volume Bragg gratings (VBGs)

SPIE Proceedings, 2016
Multiplexing technologies enable the development of high-brightness diode lasers for direct industrial applications. We present a High-Power Dense Wavelength Division Multiplexer (HP-DWDM) with an average channel spacing of 1.7 (1.5) nm and a subsequent external cavity mirror to provide feedback for frequency stabilization and multiplexing in one step.
Hengesbach, S., Klein, S., Holly, C., Witte, U., Traub, M., Hoffmann, D.   +5 more
openaire   +1 more source

ANALISIS GANGGUAN MEDIA TRANSMISI SERAT OPTIK DWDM (DENSE WAVELENGTH DIVISION MULTIPLEXING) PADA RUAS MANGGA BESAR – CENGKARENG [PDF]

, 2022
Makalah komprehensif untuk bertujuan untuk mengetahui menganalisis gangguan jalur media transmisi serat optik DWDM (Dense Wavelengteth Division Multiplexing) pada Ruas Mangga Besar hingga Cengkareng. Makalah komprehensif menggunakan parameter kinerja yang dieveluasi meliputi power link budget dan rise timebudget.
openaire  

Simulative analysis of dense wavelength-division multiplexing (DWDM)-oriented intersatellite optical wireless network

Journal of Optics, 2022
Arti Vaish, Amit Mahal
openaire   +1 more source

High speed dense wavelength division multiplexing (DWDM) transceiver optical communication system simulation study based hybrid FSO/OFC channel for local area network applications

Journal of Optical Communications
Abstract This paper has demonstrated the simulation study of the high speed dense wavelength division multiplexing (DWDM) transceiver optical communication system based hybrid FSO/OFC channel for local area network applications. The modulation techniques are employed such as coherent binary frequency shift keying (CBFSK), coherent binary
Ramachandran Thandaiah Prabu, Arulanantham Dhandapani, Mohanraj Ramya, Chandran Ramesh Kumar, Rajendran Kanchana, Chilukuri Prathima, Faten Kamel Madian   +6 more
openaire   +1 more source