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CWDM access network and prospects for introduction of full-duplex wavelength channels

 
: Langer, K.-D.; Habel, K.; Raub, F.; Seimetz, M.

Mitchell, J.E. ; University College London -UCL-, Communications Engineering Doctorate Centre:
NOC 2005 Proceedings. 10th European Conference on Networks and Optical Communications : UCL, University College London, London, UK, July 5th - 7th 2005
London: University College London, 2005
ISBN: 0-9538863-8-7
S.68-75
European Conference on Networks and Optical Communications (NOC) <10, 2005, London>
Englisch
Konferenzbeitrag
Fraunhofer HHI ()

Abstract
Using an access network concept based on single mode fibre (SMF) rings and coarse WDM (CWDM), transmission performance is investigated for a dual-fibre (up/ down-stream) scenario. We show that all 18 CWDM channels can be utilised in fibre rings of up to 20 km, even using standard SMF, and we briefly present an experimental verification. Aiming at cost reduction for fibre deployment, prospects for introducing full duplex wavelength channels are estimated with respect to inevitable Rayleigh backscattering. We show that forward error correction (FEC) can mitigate Rayleigh crosstalk significantly and that full exploitation of the CWDM band is feasible achieving sufficient reach.

: http://publica.fraunhofer.de/dokumente/N-45512.html