Re:Beyond 80 Gbps already? (Score 2, Informative)

maybe they meant they were using two, orthoganal (via the polarization) signals of the same wavelength, so that you can densely divide and multiplex that however you like, and you can double the resulting bandwidth via polarizing and recycling that wavelength.

16 wavelengths = 160 Gbps
16 wavelengths, twice each (one's all sideways from thuther) = 320 Gbps.

Though I'm just talking out of my ass.