Performance supervision for multiple optical amplifiers in WDM transmission systems using spectral analysis

Author

Chan, K. ; Chan, C.K. ; Tong, F. ; Chen, L.K.

Author_Institution

Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, China

Volume

14

Issue

5

fYear

2002

fDate

5/1/2002 12:00:00 AM

Firstpage

705

Lastpage

707

Abstract

In this letter, we propose and experimentally demonstrate a novel supervisory scheme to monitor the working status of multiple optical amplifiers in a wavelength-division-multiplexing transmission link. An optical feedback loop with unique loop length is added around each inline optical amplifier to create monitoring signal at a common supervisory wavelength. By analyzing the RF spectra of the common supervisory wavelength at the receiver end, any failed optical amplifier in the transmission link can be identified.

Keywords

fault location; monitoring; optical feedback; optical fibre amplifiers; optical fibre communication; optical receivers; optical repeaters; spectral analysis; wavelength division multiplexing; RF spectra; WDM transmission systems; common supervisory wavelength; failed optical amplifier identification; fault detection; inline optical amplifier; loop length; monitoring signal; multiple optical amplifiers; optical feedback loop; optical fiber communication; performance supervision; receiver end; spectral analysis; supervisory scheme; transmission link; wavelength-division-multiplexing transmission link; working status monitoring; Condition monitoring; Failure analysis; Optical amplifiers; Optical feedback; Optical receivers; Radio frequency; Radiofrequency amplifiers; Semiconductor optical amplifiers; Stimulated emission; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.998732

Filename

998732