Nonlinearity tolerance of RZ-AMI format in 42.7 Gbit/s long-haul transmission over standard SMF spans
02 October 2003
Comparison is made of 42.7 Gbit/s return-to-zero alternate mark inversion and return-to-zero on-off keying formats in a recirculating loop transmission experiment over 24 x 80 km standard singlemode fibre spans. It is found that RZ-AMI is more tolerant to fibre nonlinearity, in good agreement with theoretical and numerical predictions.