Results 41 to 50 of about 32,711 (174)

High performance architecture design for large scale fibre-optic sensor arrays using distributed EDFAs and hybrid TDM/DWDM [PDF]

, 2013
A distributed amplified dense wavelength division multiplexing (DWDM) array architecture is presented for interferometric fibre optic sensor array systems. This architecture employs a distributed erbium doped fibre amplifier (EDFA) scheme to decrease the
Austin, E.A., Kingsley, S.A., Liao, Y., Nash, P.J., Richardson, D.J.   +4 more
core   +1 more source

DMIMO and Machine Learning Techniques for Enhanced BER and Data Rates in 5G Free‐Space Optical Communication

IET Optoelectronics, Volume 19, Issue 1, January/December 2025.
This study introduces a dual multiple‐input multiple‐output (MIMO) method to enhance bit error rate (BER) and Q‐factor in 5G free‐space optical (FSO) communication. By integrating spatial diversity, machine learning‐based modulation, and adaptive optical filters, the system achieves data rates up to 120 Gbps while improving signal quality by up to 80%.
Ramanababu Challapalli, Chitra Perumal, S. Ramana Kumar Joga, Chidurala Saiprakash, Theophilus A. T. Kambo Jr   +4 more
wiley   +1 more source

Segmented optical transmitter comprising a CMOS driver array and an InP IQ-MZM for advanced modulation formats [PDF]

, 2017
Segmented Mach-Zehnder modulators are promising solutions to generate complex modulation schemes in the migration towards optical links with a higher-spectral efficiency.
Aimone, Alessandro, Apostolopoulos, Dimitris, Argyris, Nikos, Avramopoulos, Hercules, Bauwelinck, Johan, Dris, Stefanos, Fiol, Gerrit, Gruner, Marko, Torfs, Guy, Vaernewyck, Renato, Vanhoecke, Michael, Verheyen, Koen, Yin, Xin   +12 more
core   +1 more source

Machine Learning–Based Multiparameter Performance Predictions of Ultra‐Dense WDM FSO–FTTx Systems Under Diverse Weather Conditions

International Journal of Optics, Volume 2025, Issue 1, 2025.
Free‐space optical (FSO) communication is vital for modern wireless systems due to its high data rates, energy efficiency, secure transmission, and cost‐effectiveness. However, weather‐induced attenuation, turbulence, and pointing errors affect performance.
Ashenafi Paulos Forsido, Demissie Jobir Gelmecha, Ram Sewak Singh, Sulaiman W. Harun   +3 more
wiley   +1 more source

Data Center Interconnects at 400G and Beyond

, 2018
Current trends in Data Center Interconnectivity are considered in the light of increasing traffic and under the constraint of limited cost and power consumption.Comment: This project has received funding from the European Union Horizon 2020 research ...
Dochhan, Annika, Eiselt, Michael, Elbers, Joerg-Peter   +2 more
core   +1 more source

Operating penalties in single-fiber operation 10-Gb/s, 1024-way split, 110-km long-reach optical access networks [PDF]

, 2006
We report for the first time optical signal-to-noise penalties which lead to performance degradations in single-fiber long-reach optical access networks when compared to identical dual-fiber systems.
Mitchell, J.E., Shea, D.P.
core   +1 more source

Performance Analysis of Gray‐Coded DP‐16QAM MIMO‐FSO Systems With Coherent Detection and DSP Techniques

Journal of Computer Networks and Communications, Volume 2025, Issue 1, 2025.
The performance of a gray‐coded dual polarization‐16 quadrature amplitude modulation (DP‐16 QAM)–based multiple input multiple output (MIMO)‐FSO link using coherent detection and digital signal processing (DSP) is investigated. The MIMO link is used to mitigate geometric loss, atmospheric attenuation, and atmospheric turbulence.
Zinegnaw Libisework Gelaw, Pushparaghavan Annamalai, Hailu Dessalegn Ayalew, Eduardo Da Silva   +3 more
wiley   +1 more source

Direct fiber vector eigenmode multiplexing transmission seeded by integrated optical vortex emitters [PDF]

, 2017
Spatial modes have received substantial attention over the last decades and are used in optical communication applications. In fiber-optic communications, the employed linearly polarized modes and phase vortex modes carrying orbital angular momentum can ...
Cai, Xin-Lun, Chen, Shi, Du, Cheng, Klitis, Charalambos, Li, Shi-Mao, Liu, Jun, Mo, Qi, Sorel, Marc, Wang, An-Dong, Wang, Jian, Yu, Si-Yuan, Zhu, Long   +11 more
core   +1 more source

Estimation of QoT in an Operational WDM Transmission System Using Artificial Neural Networks With Deep SHAP and Kernel SHAP Algorithms

International Journal of RF and Microwave Computer-Aided Engineering, Volume 2025, Issue 1, 2025.
In this work, an artificial neural network (ANN) architecture is proposed to estimate the optical signal‐to‐noise ratio (OSNR) used in a dense wavelength‐division multiplexing (DWDM) transmission system in operational stations. The proposed neural network model, using the TensorFlow platform and Deep SHAP and kernel shape interpretation, provides a ...
Mojtaba Amani, Changiz. Ghobadi, Javad. Nourinia, Khair Ayman Al Shamaileh   +3 more
wiley   +1 more source

Highly efficient non-degenerate four-wave mixing under dual-mode injection in InP/InAs quantum-dash and quantum-dot lasers at 1.55 μm [PDF]

, 2015
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett.
Arsenijević, Dejan, Bimberg, Dieter, Grillot, F., Huang, Heming, Sadeev, Tagir, Schires, Kevin   +5 more
core   +1 more source