Title :
In-service monitoring of cascaded EDFA WDM links using counter-propagating OTDR pulses
Author :
Bae, Sungho ; Lee, Duckey ; Lee, Byoung Chul ; Han, Kwonhoon ; Park, Namkyoo
Author_Institution :
Labs. of Opt. Commun. Syst., Seoul Nat. Univ., South Korea
Abstract :
The possibility of an in-service optical time domain reflectometry (OTDR), for the supervision of an amplified WDM system is investigated. With minor modifications on the erbium doped fibre amplifiers (EDFA) architecture and appropriate arrangement on the direction of the injected OTDR pulse, in-service monitoring of the WDM system can be achieved at up to 400 km, with negligible penalties on the transmitted data.
Keywords :
data communication; erbium; monitoring; optical fibre amplifiers; optical fibre communication; optical links; optical time-domain reflectometry; wavelength division multiplexing; 400 km; OTDR pulse; amplified WDM system supervision; cascaded EDFA WDM links; counter-propagating OTDR pulses; cross-gain modulation effects minimisation; data transmission; erbium doped fibre amplifiers; in-service monitoring; in-service optical time domain reflectometry; Distortion; Erbium-doped fiber amplifier; Monitoring; Optical fiber communication; Optical pulses; Power transmission lines; Probes; Pulse amplifiers; Stimulated emission; Wavelength division multiplexing;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Conference_Location :
Beijing, China
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.824585
