Results 31 to 40 of about 131 (119)

Dynamic TWDM-PON for Mobile Radio Access Networks

Optics Express, 2013
In recent years, the diffusion of mobile terminals has brought about an explosive increase in communication traffic of mobile RANs. The number of radio base stations and optical fiber lines between them is becoming larger. For this reason, we studied effective optical network technologies for mobile RANs and propose the use of TWDM-PON as a means of ...
Daisuke, Iida, Shigeru, Kuwano, Jun-ichi, Kani, Jun, Terada   +3 more
openaire   +2 more sources

Single-Fiber Bi-Directional Burst-Mode EDFA for TWDM-PON

IEEE Photonics Journal, 2018
In this paper, we propose a single-fiber bi-directional burst-mode erbium-doped fiber amplifier (EDFA) to simultaneously improve upstream and downstream loss budget in time and wavelength division multiplexed–passive optical network (TWDM-PON ...
Zehao Xiao, Lilin Yi, Lei Xue, Weisheng Hu   +3 more
doaj   +1 more source

Research on Development and Application of NG-PON2

Dianxin kexue, 2014
The general requirements for NG-PON2 technology and its overlay configuration based on TWDM PON ＆amp;point-to-point WDM were introduced briefly.The architecture of NG-PON2 system and mixture of multiple technologies over reused ODN were analyzed.And then
Ming Jiang, Chengbin Shen, Jialiang Jin
doaj   +2 more sources

TWDM-PON With Signal Remodulation and Rayleigh Noise Circumvention for NG-PON2

IEEE Photonics Journal, 2013
We propose and demonstrate a 40-Gb/s (4 × 10 Gb/s) downstream and 10-Gb/s (4 × 2.5 Gb/s) upstream time-wavelength-division-multiplexed passive optical network (TWDM-PON) using signal remodulation. Here, a downstream differential-phase-shift-
C. W. Chow, C. H. Yeh, K. Xu, J. Y. Sung, H. K. Tsang   +4 more
doaj   +1 more source

EAM modulated DBR laser array for TWDM-PON applications [PDF]

2016 IEEE Photonics Conference (IPC), 2016
4 Channel DBR laser arrays are fabricated for use in optical line terminals of TWDM-PON systems. These combine 1.4Q InGaAsP material in the DBR with EAMs using the identical active layer design. A tuning range ~10 nm and extinction ratio of >27 dB are measured.
Xu, J. J., Han, L. S., Hou, L.P., Liang, S., Marsh, J.H., Huang, Y. G., Zhu, H. L.   +6 more
openaire   +1 more source

Compatibility between coherent reflective burst-mode PON and TWDM-PON physical layers

Optics Express, 2013
We discuss the compatibility between reflective PON architectures and the recently defined ITU-T G.989.1 TWDM-PON. Focusing on the upstream, we experimentally demonstrate that, by using burst-mode coherent detection at OLT, reflective PON can achieve the specification target set for TWDM-PON, without requiring precise wavelength accuracy at ONU ...
S. Straullu, F. Forghieri, BOSCO, GABRIELLA, FERRERO, Valter, GAUDINO, ROBERTO   +4 more
openaire   +3 more sources

Experimental demonstrations of symmetirc 40-Gb/s TWDM-PON [PDF]

2013 9th International Conference on Information, Communications & Signal Processing, 2013
We have experimentally demonstrated symmetric 40Gb/s TWDM-PON with long passive reach and high power budget. Directly-modulated lasers (DMLs) are used as both downstream and upstream lasers to reduce the system cost, and optical reshaping filter is used to manage the chirp of the DMLs for all the upstream and downstream channels, enabling long distance
Lilin Yi, Zhengxuan Li, Meihua Bi, Hao He 0007, Wei Wei 0030, Shilin Xiao, Weisheng Hu   +6 more
openaire   +1 more source

Peer-to-Peer Federated Learning on Software-Defined Optical Access Network

IEEE Access
Recent advancements in AI have significantly propelled machine learning (ML) as a cornerstone of modern technological infrastructure, especially in enhancing machine-to-machine (M2M) communication.
Andrew Fernando Pakpahan, I-Shyan Hwang
doaj   +1 more source

Experimental Demonstration of FTN-NRZ, PAM-4, and Duobinary Based on 10-Gbps Optics in 100G-EPON

IEEE Photonics Journal, 2018
This paper presents an experimental demonstration of 100-Gbps time- and wavelength-division multiplexed passive optical network (TWDM-PON) with 4$ \;\times$ 25-Gbps downstream transmission.
Hong-Bo Zhang, Ning Jiang, Zhi Zheng, Wen-Qin Wang   +3 more
doaj   +1 more source

Visualization Tool for Control Signalling in NG-PON2

Journal of Communications Software and Systems, 2016
The requirements of end users on the quality of Internet connection and services is forcing the Internet providersand technical community to propose and introduce new technologies which may react to this demand. The most promising solution in this regard
Michal Jurcik, Tomas Horvath
doaj