Experimental comparison between hybrid QPSK-8QAM and 4D-32SP-16QAM formats at 31.2 GBaud using Nyquist pulse shaping
22 September 2013
We report on the performance comparison between two modulation formats carrying each 2.5 bits per transmitted symbol. Using Nyquist pulse shaping and a 33-GHz spacing grid, we show that the 4D-32SP-16QAM format outperforms the hybrid QPSK-8QAM format over a transmission link made of standard single mode fiber.
