Can't find any statement whether the nifty proclaimed 400G wavelength is indeed a single 100GHz channel or just a bundled supper channel
The only hint is the total capacity of a fiber of 17.6 Tbps with 44 wavelengths which is roughly the whole 100GHz spaced grid
Well, if you click through to his earlier piece, at
he does explicitly say "400Gb/s per wavelength"...
From France Telecom :
As said by Jay : 400Gbits per wavelength