Performance comparison of DPSK, P-DPSK, RZ-DQPSK and coherent PDM-QPSK at 40Gb/s over a terrestrial link
22 March 2009
DPSK, P-DPSK, RZ-DQPSK and coherent PDM-QPSK are compared over the same testbed by sending a 40Gb/s channel, either surrounded by 10Gb/s legacy or 40Gb/s channels. DPSK and P-DPSK are most the robust to nonlinear effects.