Apparently this "new" #communication #method can be used to #transmit 1.8 #petabits per #second https://www.dtu.dk/english/news/all-news.. I guess the neat trick here is #splitting the #laser #light and creating an #efficient #encoder and #decoder #chip . Interestingly it doesn't mention #distance - and it is unclear to me if they could #transmit in reality using the full #spectrum via #fibre .