640-Gb/s OTDM RZ-DQPSK Signal Enabling 2.4-bit/s/Hz Spectral Efficiency and Its Detection with an EAM-based Receiver
30 October 2008
We demonstrate for the first time 640-Gb/s single-channel OTDM RZ-DQPSK signaling with record spectral efficiencies of 2.4 bit/s/Hz and up to 3.2 bit/s/Hz. The demonstrated data rate is the highest to date detected with an eletro-absorption modulator (EAM) based receiver.
