Title :
An over 2200-km coherent transmission experiment at 2.5 Gb/s using erbium-doped-fiber in-line amplifiers
Author :
Saito, Shigeru ; Imai, Takamasa ; Ito, Takeshi
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa, Japan
fDate :
2/1/1991 12:00:00 AM
Abstract :
A 2223 km transmission distance was achieved with a 2.5-Gb/s heterodyne detection system that used erbium-doped-fiber in-line amplifiers and dispersion-shifted single-mode fibers. Twenty-five amplifiers, placed at approximately 80-km intervals, offered a total gain of more than 440 dB. Receiver sensitivity was -42.0 dBm, with only a 4.2-dB penalty from the initial sensitivity achieved by the back-to-back configuration
Keywords :
erbium; fibre lasers; optical communication equipment; optical links; 2.5 Gbit/s; 2200 km; 440 dB; 80 km; Er:fibre in-line amplifiers; back-to-back configuration; coherent transmission experiment; dispersion-shifted single-mode fibers; heterodyne detection system; receiver sensitivity; transmission distance; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Optical fiber amplifiers; Optical fiber polarization; Optical fibers; Optical mixing; Optical noise; Optical receivers; Optical transmitters; Semiconductor optical amplifiers;
Journal_Title :
Lightwave Technology, Journal of
