Results 291 to 300 of about 918,786 (318)

The optical sampling based on semiconductor optical amplifier for optical performance monitoring

SPIE Proceedings, 2008
Progress in optical network has stimulated interest in optical performance monitoring (OPM). Optical sampling technique is believed to be a promising candidate to monitor the physical state of the network. The theoretical model of a monitoring system based on optical sampling in semiconductor optical amplifier (SOA) and software synchronized algorithm ...
Mao-tong Liu, Xiangyu Wu, Aiying Yang, Yu-nan Sun   +3 more
openaire   +2 more sources

Experimental Demonstration of Simultaneous Modulation Format/Symbol Rate Identification and Optical Performance Monitoring for Coherent Optical Systems

Journal of Lightwave Technology, 2017
Transmission systems that use advanced complex modulation schemes and digital coherent receivers, have been driving the growth of optical communication networks for nearly a decade.
Latifa Guesmi, A. Ragheb, H. Fathallah, M. Menif   +3 more
semanticscholar   +1 more source

Performance monitoring in high speed optical networks

SPIE Proceedings, 2009
The world wide growing bandwidth demand in optical networks leads to channel data rates of 40 Gbit/s and higher (e.g. 100 Gbit/s). At these data rates polarization mode dispersion (PMD) is one of the limiting factors even in metro networks. Due to stochastically changing environmental conditions, such as temperature drifts, vibrations and pressure ...
Michael Haas, Christian G. Schaffer
openaire   +2 more sources

Machine Learning-Assisted Optical Performance Monitoring in Fiber-Optic Networks

Scalable Uncertainty Management, 2018
We review machine learning (ML)-based optical performance monitoring (OPM) techniques in optical communications. Recent applications of ML-assisted OPM in different aspects of fiber-optic networking including cognitive fault detection and management ...
F. Khan, Qirui Fan, Chao Lu, A. Lau
semanticscholar   +1 more source

Optical Performance Monitoring Using Nonlinear Detection

Journal of Lightwave Technology, 2004
A definitive goal for optical performance monitoring in an optical communications network is to provide comprehensive signal quality information in a cost-effective manner. This paper explores in detail the possibility of using nonlinear optical detection to achieve this goal.
M. Fishteyn, S. Wielandy, Benyuan Zhu
openaire   +2 more sources

Optical performance monitoring techniques for high capacity optical networks [PDF]

2010 7th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP 2010), 2010
Optical performance monitoring is an important function for high capacity optical transmission system. In this paper, we summarize some of the recent work we have carried out in this area. In particular, PMD independent OSNR monitoring, OSNR monitoring using half symbol delay for SNR monitoring of RZ-DQPSK signal and signed residue dispersion ...
Jian Zhao, Hwa Yaw Tam, Qi Sui, Ping Kong Alexander Wai, Alan Pak Tao Lau, Faisal Nadeem Khan, Chao Lu, Zhaohui Li   +7 more
openaire   +1 more source

Performance Monitoring Method for All-Optical Networks

2009 International Conference on Networking and Digital Society, 2009
All-Optical Networks provide ultra-fast data rates, but present a new set of challenges for network security. However optical performance monitoring (OPM) and optical network management (ONM) are essential in building a reliable, high-capacity, and service-differentiation enabled all-optical network. One of the serious problems with transparency is the
Ahmed Jedidi, Mohamed Abid
openaire   +2 more sources

Optical performance monitoring in reconfigurable OADM networks

2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009
A definition for OPM is given. Then, OPM parameters, requirements for OPM are discussed. Following is a review of several prevalent OPM techniques. At the end, the future challenges for OPM are proposed.
Zhang Jinnan, Zhang Minglun, Zhang Xiao-guang, Zhang Yangan, Yuan Xueguang   +4 more
openaire   +2 more sources

Optical performance monitor based on asynchronous detection

LEOS 2001. 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (Cat. No.01CH37242), 2002
An important issue in network management and survivability is the ability to measure the performance of the optical data, detected degradation and failure, and provisioning means of failure location and isolation. Our propose to monitor the optical performance consists in determine the statistical characteristic of an optical signal asynchronously ...
Mário Lima, J.R.F. da Rocha, Antônio Lúcio Teixeira, João L. Pinto, Paulo André   +4 more
openaire   +2 more sources

Combined image Hough transform based simultaneous multi-parameter optical performance monitoring for intelligent optical networks

Optical fiber technology (Print), 2023
Sindhumitha Kulandaivel, R. Jeyachitra
semanticscholar   +1 more source