Full monitoring for Long-Reach TWDM Passive Optical Networks based on TRA technique
2016 (English)In: International Conference on Transparent Optical Networks, IEEE Computer Society, 2016Conference paper (Refereed)
Long-Reach Passive Optical Networks (LR-PONs) consolidates of metropolitan and access networks by extending the distance between the Central Office (CO) and the end users, which in turn simplifies the network and potentially brings cost savings. With the explosively growing of data traffic, Time and Wavelength Division Multiplexing (TWDM) technology have also been employed in LR-PON to realize high capacity. However, due to high capacity and large coverage, the presence of a single failure may cause a huge loss of data and affect a large number of subscribers in LR-PON. Efficient network fault monitoring therefore becomes a key to improve the level of network reliability. In this paper, we report an advanced solution realizing fault detection, identification and localization in both feeder and distribution fiber segments of TWDM LR-PON. Instead of using the conventional optical time domain reflectometry (OTDR) approach, we implement multi wavelength Transmission-Reflection Analysis (nλ-TRA) as the monitoring technique, which is able to provide a good spatial accuracy and a high detection speed without interfering with the data traffic. Theoretical analysis and experimental validation demonstrate that the proposed scheme is capable of providing an accurate fault monitoring functionality.
Place, publisher, year, edition, pages
IEEE Computer Society, 2016.
fault detection and localization, fiber optics communications, long reach passive optical networks, Rayleigh scattering, Fault detection, Optical communication, Optical fiber communication, Passive networks, Time domain analysis, Transparent optical networks, Wavelength division multiplexing, Experimental validations, Fiber optics communication, Long reach passive optical networks (LR PONs), Long-reach passive optical networks, Monitoring techniques, Multi-wavelength transmission, Optical time domain reflectometry, Passive optical networks
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-194948DOI: 10.1109/ICTON.2016.7550594ScopusID: 2-s2.0-84985995750ISBN: 9781509014675OAI: oai:DiVA.org:kth-194948DiVA: diva2:1049079
18th International Conference on Transparent Optical Networks, ICTON 2016, 10 July 2016 through 14 July 2016
QC 201611232016-11-232016-11-012016-11-23Bibliographically approved