Title :
Over 350 km CPFSK repeaterless transmission at 2.5 Gbit/s employing high-output power erbium-doped fibre amplifiers
Author :
Sugie, T. ; Imai, T. ; Ito, T.
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa, Japan
Abstract :
A 351.4 km CPFSK repeaterless transmission at 2.5 Gbit/s is described, which uses a newly developed post amplifier consisting of two erbium-doped fibres. Amplifier output power of +18.8 dBm and a maximum allowable attenuation as high as 63.8 dB in the optical link were achieved.
Keywords :
erbium; fibre optics; frequency shift keying; optical links; solid lasers; 2.5 Gbit/s; 351.4 km; 63.8 dB; CPFSK repeaterless transmission; attenuation; coherent phase frequency shift keying; fibre amplifiers; optical link; output power;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19901012
