DocumentCode :
79141
Title :
Coherent Systems for Low-Cost 10 Gb/s Optical Access Networks
Author :
Artiglia, M. ; Corsini, R. ; Presi, M. ; Bottoni, F. ; Cossu, G. ; Ciaramella, E.
Author_Institution :
Lab. Naz. di Reti Fotoniche, Consorzio Naz. Interuniv. sulle Telecomun., Pisa, Italy
Volume :
33
Issue :
15
fYear :
2015
fDate :
Aug.1, 1 2015
Firstpage :
3338
Lastpage :
3344
Abstract :
We experimentally demonstrate a cost-effective coherent 10 Gb/s system for passive optical networks, exploiting off-the-shelf DFB lasers and a phase-diversity receiver based on a simple 3 × 3 fiber coupler. Since the system uses a simple amplitude-shift keying format, no complex electronic processing is required and there is no need of frequency/phase stabilization of the local oscillator, whose frequency can change by more than ±1 GHz with no significant performance variation. The system has a 40 dB loss budget and is, therefore, compatible with the high losses of practical optical distribution networks, where power splitting is used to distribute the signal to a high number of users. Error-free 10-Gb/s transmission at the FEC limit is obtained after transmission over up to 66 km of G.652 single mode fiber. Polarization-independent operation is also demonstrated with a simple modification of the detection scheme, without duplicating components, and with a small variation of the sensitivity. The limited complexity indicates the potential for a cost-effective implementation, which makes it compatible with the strictly cost-aware access networks environment, even for high-end services.
Keywords :
amplitude shift keying; optical fibre networks; passive optical networks; amplitude shift keying format; bit rate 1 Gbit/s; coherent systems; complex electronic processing; cost effective implementation; detection scheme; duplicating components; fiber coupler; frequency-phase stabilization; local oscillator; off-the-shelf DFB lasers; optical access networks; optical distribution networks; passive optical networks; phase diversity receiver; polarization independent operation; power splitting; Amplitude shift keying; Optical fibers; Optical receivers; Passive optical networks; Optical Access Network,; Optical Coherent Detection; Optical Communication Equipment; Optical Fiber Communications; Optical Fiber Networks; Optical access network; optical coherent detection; optical communication equipment; optical fiber communications; optical fiber networks;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.2015.2433952
Filename :
7113780
Link To Document :
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