Results 61 to 70 of about 31,284 (196)

Microresonator solitons for massively parallel coherent optical communications

, 2017
Optical solitons are waveforms that preserve their shape while propagating, relying on a balance of dispersion and nonlinearity. Soliton-based data transmission schemes were investigated in the 1980s, promising to overcome the limitations imposed by ...
Anderson, Miles H., Brasch, Victor, Freude, Wolfgang, Karpov, Maxim, Kemal, Juned N., Kippenberg, Tobias J., Koos, Christian, Kordts, Arne, Marin-Palomo, Pablo, Pfeiffer, Martin H. P., Pfeifle, Joerg, Rosenberger, Ralf, Trocha, Philipp, Vijayan, Kovendhan, Wolf, Stefan   +14 more
core   +1 more source

Reservoir Computing for Few-Mode Fiber Channel OSNR Monitoring in Deep Learning Frameworks

IEEE Photonics Journal
This paper presents a novel optical performance monitoring (OPM) scheme based on reservoir computing (RC) and Resnet network for monitoring the optical signal-to-noise ratio (OSNR) of few-mode transmission channels, without the need for any demodulation ...
Jianjun Li, Tianfeng Zhao, Baojian Wu, Kun Qiu, Feng Wen   +4 more
doaj   +1 more source

A Joint OSNR and Nonlinear Distortions Estimation Method for Optical Fiber Transmission System

IEEE Photonics Journal, 2018
In this paper, we propose and demonstrate a joint optical signal-to-noise ratio (OSNR) and a nonlinear distortions estimation method. The OSNR is calculated by considering either the link parameters or the correlation operations of the training symbols ...
Yating Xiang, Ming Tang, Qiong Wu, Huibin Zhou, Bo Yong, Songnian Fu, Deming Liu   +6 more
doaj   +1 more source

Extended Worst-Case OSNR Searching Algorithm for Optical Network-on-Chip Using a Semi-Greedy Heuristic With Adaptive Scan Range

IEEE Access, 2020
The advances in silicon photonics technology have facilitated the realization of optical network-on-chips (ONoCs) to cope with the physical limitations of metal interconnections in traditional CMOS integrated circuits.
Yong Wook Kim, Jae Hoon Lee, Tae Hee Han
doaj   +1 more source

Opportunities, challenges and requirements for introducing space division multiplexing in fibre optical networks

IET Optoelectronics, Volume 19, Issue 1, January/December 2025.
The authors discuss opportunities, challenges and requirements for successful commercialisation of space division multiplexing (SDM) in optical networks. The authors consider recent developments in SDM technology and focus on the importance of different geometrical parameters when designing multi‐core fibres and on the design choices for shared SDM ...
Gabriele Di Rosa, Lutz Rapp
wiley   +1 more source

Performance evaluation of single carrier 40-Gbit/s downstream for long-reach passive optical network [PDF]

, 2014
This paper presents a new long reach PON (LR-PON) scenario operating at a single carrier of 40-Gbit/s for downstream, as an upgrade option of the LR-PON evolutionary strategy. An electrical 3-level duobinary modulation format was proposed for the 40-Gbit/
Bauwelinck, Johan, Moeneclaey, Bart, Payne, David B, Ruffini, Marco, Torfs, Guy, Vaernewyck, Renato, Verbrugghe, Jochen, Vyncke, Arno, Yin, Xin   +8 more
core   +1 more source

Experimental Evaluation of Impairments in Unrepeatered DP-16QAM Link with Distributed Raman Amplification

Photonics, 2017
The transmission impairments of a Raman amplified link using dual-polarization 16-quadrature amplitude modulation (DP-16QAM) are experimentally characterized.
Xiaodan Pang, Oskars Ozolins, Atalla El-Taher, Richard Schatz, Gunnar Jacobsen, Sergey Sergeyev, Sergei Popov   +6 more
doaj   +1 more source

Modulation Format Identification Based on Signal Constellation Diagrams and Support Vector Machine

Photonics, 2022
In coherent optical communication systems, where multiple modulation formats are mixed and variable, the correct identification of signal modulation formats provides the foundation for subsequent performance improvement using digital algorithms.
Zhiqi Huang, Qi Zhang, Xiangjun Xin, Haipeng Yao, Ran Gao, Jinkun Jiang, Feng Tian, Bingchun Liu, Fu Wang, Qinghua Tian, Yongjun Wang, Leijing Yang   +11 more
doaj   +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

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