Title :
Demonstration of a low-cost 1625-nm OTDR monitoring for 350-km WDM networks with semiconductor optical amplifiers
Author :
Lee, H.H. ; Nam, Y.H. ; Lee, D. ; Chung, H.S. ; Kim, K.
Author_Institution :
Dept. of Phys., Chungnam Nat. Univ., Daejeon, South Korea
fDate :
4/1/2005 12:00:00 AM
Abstract :
A semiconductor optical amplifier (SOA)-based optical time-domain reflectometry (OTDR) monitoring system is successfully demonstrated for a 350-km wavelength-division-multiplexing (WDM) network operating at 1625 nm. The 1625-nm monitoring signal bypasses the amplifying stage for WDM signals and is amplified by an L-band SOA. No power penalty was observed in the 10-Gb/s WDM transmissions when the OTDR signal is on. This simple and low-cost system is an excellent candidate for the online monitoring of WDM transmission systems.
Keywords :
optical fibre communication; optical time-domain reflectometry; semiconductor optical amplifiers; wavelength division multiplexing; 10 Gbit/s; 1625 nm; 350 km; OTDR; WDM networks; WDM transmission systems; optical time-domain reflectometry monitoring system; semiconductor optical amplifiers; wavelength-division-multiplexing network; Erbium-doped fiber amplifier; Monitoring; Optical amplifiers; Optical crosstalk; Optical distortion; Optical pumping; Semiconductor optical amplifiers; Stimulated emission; WDM networks; Wavelength division multiplexing; 1625 nm; optical time-domain reflectometry (OTDR); semiconductor optical amplifier (SOA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.843280
