Two-way transmission at 2.488 Gbit/s over a 132 km operational submerged cable using erbium-doped fibre power amplifiers

The results of a field trial on the UK-Channel Islands No. 7 cable, in which ruggedised, broadband erbium power amplifiers were used to achieve two-way transmission at 2.488 Gbit/s over a 132 km submerged cable is reported.