Results 141 to 150 of about 469,153 (187)

25Gbps Quasicoherent Receiver for Beyond NG-PON2 Access Networks

2018 European Conference on Optical Communication (ECOC), 2018
A 25Gbps quasicoherent receiver with simple DSP has been experimentally validated for 25G access networks. It exhibits a sensitivity of -24. 7dBm after 20km SSMF and duobinary decoding and provides a power budget of 25. 7dB.
Jose A. Altabas, Lau F. Suhr, Guillermo Silva Valdecasa, José A. Lázaro, Ignacio Garcés, Jesper Bevensee Jensen, Anders T. Clausen   +6 more
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NG-PON2 Technology and Standards

Journal of Lightwave Technology, 2015
This paper provides a tutorial overview of the latest generation of passive optical network (PON) technology standards nearing completion in ITU-T. The system is termed NG-PON2 and offers a fiber capacity of 40 Gbit/s by exploiting multiple wavelengths at dense wavelength division multiplexing channel spacing and tunable transceiver technology in the ...
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Photonic integrated transmitter and receiver for NG-PON2

SPIE Proceedings, 2014
In this paper the authors present a monolithic Photonic Integrated Circuit which includes a transmitter and a receiver for NG-PON2. With this layout it is possible to build an OLT and, by redesigning some filters, also an ONU. This technology allows reducing the losses in the transmitter and in the receiver, increasing power budget, and also reducing ...
Ana Tavares, Ana Lopes, Cláudio Rodrigues, Paulo Mãocheia, Tiago Mendes, Simão Brandão, Francisco Rodrigues, Ricardo Ferreira, António Teixeira   +8 more
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N:1 fast protection in NG-PON2

2015 Opto-Electronics and Communications Conference (OECC), 2015
This paper proposes a fast N:1 protection mechanism for NG-PON2 network. When failures occur the affected ONUs conduct wavelength tuning to realize fast service recovery. We analyzed data loss from protection using a Markov chain model. The numerical results show the fast protection scheme reduces the disconnection time, and ONU configurations of logic
null Yuanqiu Luo, null Bo Gao, null Ming Jiang, Frank Effenberger   +3 more
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Lessons Learned from NG-PON2 Systems Developments and Deployment

Optical Fiber Communication Conference (OFC) 2019, 2019
NG-PON2 is a unique departure from the evolution of single channel TDM-PON systems in that rather than increasing service data rates by incrementally increasing symbol rates, NG-PON2 blended TDM-PON with WDM-PON to create a new optical media access technology, TWDM-PON or Time and Wavelength Division Multiplexed PON.
Hal Roberts, Nicholas Proite, Pete Lee, Christopher Smith   +3 more
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A New All-Optical OFDM Architecture for NG-PON2

Latin America Optics and Photonics Conference, 2018
A new all optical orthogonal frequency division multiplexing architecture based on a Mach-Zehnder interferometer is proposed. Our results shows a throughput of 1.28 Tbps over 100 km of single mode fiber witch is suitable for long reach NG-PON2 applications.
P. R. N. Marciano, D. V. N. Coelho, J. A. L. Silva, M. J. Pontes, M. E. V. Segatto   +4 more
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Characterization and optimization of transceivers for XGS-PON and NG-PON2

2021
Mestrado em Engenharia Eletrónica e ...
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Advanced optical access beyond NG-PON2

Advanced Photonics for Communications, 2014
This paper discusses technical directions towards the optical access beyond NG-PON2. The driving factors include the future mobile access as well as the evolution of traffic aggregation.
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DSP-based optical access approaches for enhancing NG-PON2 systems

IEEE Communications Magazine, 2013
Motivated by recent progress in next-generation PON2, or NG-PON2, standardization, this article reviews digital signal processing technologies to further enhance NG-PON2 systems by realizing flexible and cost-effective optical access network deployments.
Naoto Yoshimoto, Junichi Kani, Sang-Yuep Kim, Noriko Iiyama, Jun Terada   +4 more
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Enabling technologies and signal processing for NG-PON2 and future WDM-PON

2013 9th International Conference on Information, Communications & Signal Processing, 2013
Silicon-based optical components are now mature technologies; and they can be used in the time-and-wavelength-division-multiplexed passive-optical-network (TWDM-PON) optical networking unit (ONU) to increase the level of integration for cost reduction. We will also discuss the further migration form the NG-PON2 to the future pure WDM-PON.
Chi-Wai Chow, Jiun-Yu Sung, C. W. Hsu, Chien-Hung Yeh   +3 more
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