We demonstrate a ‘black-box’ PI-FOPA operating with 16dB net-gain within a DWDM transmission system for the first time, amplifying a record 45x127Gb/s equivalent PDM-QPSK signals over 4x75km. Bit error rate performance is evaluated and compared with an all-EDFA system.
Stephens, M. F., & Doran, N. J. (2018). First Multi-Terabit DWDM Transmission and Inline Amplification using a Black-Box Polarisation-Insensitive Fibre Optical Parametric Amplifier (PI-FOPA). In 2017 European Conference on Optical Communication (ECOC) IEEE. https://doi.org/10.1109/ECOC.2017.8345886