In-Band OSNR Monitoring Technique Based on Link-by-Link Estimation for Dynamic Transparent Optical Networks

Author

Lee, Jun Haeng ; Yoshikane, Noboru ; Tsuritani, Takehiro ; Otani, Tomohiro

Author_Institution

KDDI R&D Labs. Inc., Fujimino

Volume

26

Issue

10

fYear

2008

fDate

5/15/2008 12:00:00 AM

Firstpage

1217

Lastpage

1225

Abstract

A cost-effective optical performance monitoring system, based on link-by-link optical signal-to-noise ratio (OSNR) estimation, is proposed for a dynamic transparent optical network. The proposed technique estimates the OSNR by monitoring the channel powers at the input and output of each optical link and the total input power to the inline EDFAs. In-band OSNR monitoring was successfully demonstrated at 42.7 Gb/s RZ-DQPSK signals, reflecting the transmission performance.

Keywords

differential phase shift keying; erbium; optical communication equipment; optical fibre amplifiers; optical fibre networks; optical information processing; optical signal detection; telecommunication channels; wavelength division multiplexing; JkJk:Er; RZ-DQPSK signal; bit rate 42.7 Gbit/s; channel power monitoring; cost-effective optical performance monitoring; dynamic transparent optical network; in-band OSNR monitoring; inline EDFA; link-by-link estimation; optical signal-to-noise ratio estimation; transmission performance; Condition monitoring; Costs; High speed optical techniques; Optical fiber networks; Optical noise; Optical polarization; Optical receivers; Optical transmitters; Signal to noise ratio; Wavelength division multiplexing; Optical performance monitoring (OPM); optical signal-to-noise ratio (OSNR); transparent optical network;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2008.917060

Filename

4542907