Passive optical network upgrading by using In-band WDM overlay

This paper presents a new approach to upgrade the current passive optical network (PON) by using wavelength division multiplexing (WDM) in the standardized optical grid of gigabit PON (In-band WDM PON overlay). The aim is to increase the number of optical distribution networks (ODNs) fed by a single...

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Bibliographic Details
Published in2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011) pp. 40 - 43
Main Authors Penze, R. S., Rosolem, J. B., Duarte, U. R., Filho, R. B.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2011
Subjects
CWDM Stacked PON
GEPON
GPON
Optical fiber filters
Optical fibers
Optical receivers
Passive optical networks
PON
Wavelength division multiplexing
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Summary:This paper presents a new approach to upgrade the current passive optical network (PON) by using wavelength division multiplexing (WDM) in the standardized optical grid of gigabit PON (In-band WDM PON overlay). The aim is to increase the number of optical distribution networks (ODNs) fed by a single fiber while preserving the users bandwidth. In this approach four downstream (DS) wavelengths signals are transmitted from an optical line terminal (OLT) to four different ODNs using the standard DS PON spectrum ranging from 1480 to 1500 nm. The upstream (US) signals from the four different ODNs are also wavelength multiplexed within the standardized US PON spectrum ranging from 1270 to 1330 nm. Proofs of concept are presented in a 20 km PON serving 32 ONTs in order to demonstrate the feasibility of this proposal.
ISBN:1457716623
9781457716621
DOI:10.1109/IMOC.2011.6169234