Passive optical network upgrading by using In-band WDM overlay

Author

Penze, Rivael Strobel ; Rosolem, João Batista ; Duarte, Ulysses Rondina ; Filho, Renato Baldini

Author_Institution

Convergence Network Dept., CPqD - R&D Center in Telecommun., Campinas, Brazil

fYear

2011

fDate

Oct. 29 2011-Nov. 1 2011

Firstpage

40

Lastpage

43

Abstract

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.

Keywords

passive optical networks; wavelength division multiplexing; In-band WDM PON overlay; distance 20 km; gigabit PON; optical distribution networks; optical grid; optical line terminal; passive optical network; wavelength 1270 nm to 1330 nm; wavelength 1480 nm to 1500 nm; wavelength division multiplexing; Optical fiber filters; Optical fibers; Optical receivers; Passive optical networks; Wavelength division multiplexing; CWDM Stacked PON; GEPON; GPON; PON;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International

Conference_Location

Natal

ISSN

Pending

Print_ISBN

978-1-4577-1662-1

Type

conf

DOI

10.1109/IMOC.2011.6169234

Filename

6169234