Proceedings ArticleDOI
6.25Gb/s differential duobinary transmission in 2GHz BW limited direct phase modulated DFB for udWDM-PONs
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TLDR
In this paper, a differential duobinary codification is proposed for directly phase modulating a 2 GHz BW equalized DFB laser, which achieves 6.25 Gb/s bitrate transmission with -38.5 dBm Rx sensitivity at BER=10-3.Abstract:
A differential duobinary codification is proposed for directly phase modulating a 2 GHz BW equalized DFB laser. The method was tested with homodyne coherent detection achieving 6.25 Gb/s bitrate transmission with -38.5 dBm Rx sensitivity at BER=10-3.read more
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Journal ArticleDOI
Technologies for Cost-Effective udWDM-PONs
Josep Prat,Ivan N. Cano,Marco Presi,Ioannis Tomkos,Dimitrios Klonidis,Gemma Vall-Llosera,Romain Brenot,Robert Pous,George Papastergiou,Albert Rafel,Ernesto Ciaramella +10 more
TL;DR: In this article, an ultradense WDM-PON with only 6.25 GHz channel spacing is implemented with conventional DFB lasers, for a splitter-based PON infrastructure with 256 ONUs.
Proceedings ArticleDOI
Technologies for a cost effective UDWDM-PON
TL;DR: A new ultra-dense WDM-PON with coherent techniques and low cost devices is developed for an efficient utilization of the optical spectrum, showing that the “Wavelength-to-the-User” concept can be feasible with 6.25 GHz channel spacing in a splitter-based PON.
Proceedings ArticleDOI
Optical vs. Electrical Duobinary Coding for 25 Gb/s PONs based on DSP-free Coherent Envelope Detection
TL;DR: This work investigates and experimentally compares 25 Gb/s serial-line rate optical and electrical duobinary signals combined with DSP-free, coherent envelope-detection for serial- line rate upgrade in future PONs.
Proceedings ArticleDOI
COCONUT cost, power consumption and migration analysis: A route towards NG-PON3
Gemma Vall-Llosera,Albert Rafel,Neil Parkin,M. Angelou,Dimitrios Klonidis,Ivan N. Cano,Marco Presi,George Papastergiou,Ioannis Tomkos,Josep Prat,Ernesto Ciaramella +10 more
TL;DR: In this paper, the authors present the analysis of the COCONUT (COst effective COhereNt Ultra-dense-WDM-PON for λ-to-the-user access) project architectures with respect to their associated cost, power consumption and migration scenarios.
Journal ArticleDOI
A Novel Scheme for UDWDM-PON Broadband Access Network Using Injection-Locked Phase-to-Intensity Modulation Converter
TL;DR: In this paper, a cost-effective ultradense wavelength division multiplexed (UDWDM) passive optical network (PON) which uses phase modulation (PM) of the optical carriers in the optical line terminal (OLT) in order to achieve inherent noise immunity in the network is proposed and analyzed.
References
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Proceedings ArticleDOI
10 Gb/s RSOA transmission by direct duobinary modulation
TL;DR: In this article, an ultra low-cost electronic solution to achieve 10 Gb/s transmission by means of passive equalization and duobinary encoding using an RSOA with 1.5 GHz electrical bandwidth is demonstrated.
Proceedings ArticleDOI
Towards ultra-dense wavelength-to-the-user: The approach of the COCONUT project
J. Prat,M. Angelou,Christophe Kazmierski,Robert Pous,Marco Presi,Albert Rafel,Gemma Vall-Llosera,Ioannis Tomkos,Ernesto Ciaramella +8 more
TL;DR: The high-level COCONUT network should allow for seamless evolution from present PON architectures, but also support new emerging applications such as mobile back-haul and front-haul, and reach higher power budget and higher sensitivity, thanks to ultra-dense WDM.
Journal ArticleDOI
Direct Phase Modulation DFBs for Cost-Effective ONU Transmitter in udWDM PONs
TL;DR: In this paper, a direct phase modulating a low-cost distributed feedback laser is presented for user transmitter in ultra-dense wavelength division multiplexing passive optical networks, consisting of a simple RC network, which equalizes the phase response.
Journal ArticleDOI
Transmission of 1.25-Gb/s PSK signal generated by using RSOA in 110-km coherent WDM PON.
TL;DR: The results show that, by operating the RSOA under this optimum condition, the excellent receiver sensitivity of -49.8 dBm at 1.25 Gb/s is achieved and the WDM PON is implemented by using the phase-modulated RSOAs and self-homodyne receivers.
Proceedings ArticleDOI
Experimental demonstration of a novel polarization-independent coherent receiver for PONs
TL;DR: A novel polarization-independent coherent receiver for low- cost PONs using intensity-modulation and low-cost components is experimentally demonstrated.