Results 331 to 340 of about 1,237,729 (356)
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Performance monitoring in high speed optical networks
SPIE Proceedings, 2009The 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
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Machine Learning-Assisted Optical Performance Monitoring in Fiber-Optic Networks
Scalable Uncertainty Management, 2018We 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
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Optical Performance Monitoring Using Nonlinear Detection
Journal of Lightwave Technology, 2004A 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
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Performance Monitoring Method for All-Optical Networks
2009 International Conference on Networking and Digital Society, 2009All-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
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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 +7 more
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Optical Fiber Communications Conference and Exhibition, 2017
We experimentally demonstrate a monitoring scheme utilizing both intermediate node and receiver monitoring for network re-planning. Either modulation format switching or light-path re-routing is adopted for restoration.
F. Meng +6 more
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We experimentally demonstrate a monitoring scheme utilizing both intermediate node and receiver monitoring for network re-planning. Either modulation format switching or light-path re-routing is adopted for restoration.
F. Meng +6 more
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Optical performance monitoring in reconfigurable OADM networks
2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009A 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 +4 more
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Optical performance monitor based on asynchronous detection
LEOS 2001. 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (Cat. No.01CH37242), 2002An 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 +4 more
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Optical performance monitoring applications in transparent networks
14th Annual International Conference on Wireless and Optical Communications, 2005. WOCC 2005, 2005Summary form only given. Optical performance monitoring (OPM) is an enabling technology for highly transparent and reconfigurable networks. Simple OPM functions such as channel monitoring and discovery are requirements in re-configurable systems. Large transparent regions of the network either created by long transmission distances or transparent pass ...
P. Vorreau, Juerg Leuthold
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