Centralized in-service OTDR testing in a CWDM business access network

Author

Frigo, Nicholas J. ; Iannone, Patrick P. ; Reichmann, Kenneth C. ; Zhou, Xiang ; Stodden, Mark W.

Author_Institution

AT&T Labs. Res., Middletown, NJ, USA

Volume

22

Issue

11

fYear

2004

Firstpage

2641

Lastpage

2652

Abstract

This paper describes "virtual common space", an access architecture that uses inexpensive "coarse" wavelength-division-multiplexing (CWDM) technology to extend the advantages of wavelength-division multiplexing (WDM) to business access applications. This new approach suggests new operations and diagnostic requirements. A wavelength-selective optical time-domain reflectometer using CWDM sources is demonstrated for such procedures. Some of the potential impairments that could arise from in-service monitoring on these systems are quantified.

Keywords

business communication; monitoring; optical fibre subscriber loops; optical fibre testing; optical time-domain reflectometry; wavelength division multiplexing; CWDM business access network; OTDR testing; coarse wavelength division multiplexing; in-service monitoring; wavelength selective optical time-domain reflectometer; Business communication; Costs; Fault location; Intelligent networks; Optical fiber testing; Optical scattering; Protection; SONET; Switches; Wavelength division multiplexing; 65; Optical fiber communication; Raman scattering; Rayleigh scattering; WDM; wavelength-division multiplexing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2004.837292

Filename

1353396