using an optically-preamplified receiver. We performed measurements on a 10-Gb/s data stream for two transmission formats: return-to-zero with a 50% duty cycle and a nonreturn-to- zero.
In this paper we compare the impact of MPI and ASE noise on Q-factor measurements when using an optically-preamplified receiver. We performed measurements on a 10-Gb/s data stream for two transmission formats: return-to-zero with a 50% duty cycle and a nonreturn-to-zero.