Abstract
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 electro-absorption modulator (EAM) based receiver.
© 2008 Optical Society of America
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