1. Gain-flattened broadband Er3+-doped silica fibre amplifier with low noise characteristics;Yamada;Electron. Lett.,1998
2. Ultra long distance submarine DWDM systems;Bergano,2001
3. 2.488-Gb/s unrepeatered transmission over 529km using remotely pumped post-and pre-amplifiers, forward error correction, and dispersion compensation;Hansen,1995
4. Remote amplification in repeaterless transmission systems;Hansen;Opt. Fiber Technol.,1997
5. Performance prospects of long span, large capacity submarine repeaterless transmission systems.;Takahashi,1996