> "The new design maintains low losses of around 0.2 dB/km over a 66 THz bandwidth and boasts 45% faster transmission speeds...

0.2 dB/km is already a pretty common loss ratio, though. It's true that you won't get that over the entire 1310–1550nm range (the ~35 THz range commonly in use), but you generally can't use all of that for long-haul links anyway due to the way repeaters work.

More interestingly, they promise 0.06 dB/km or so in the most relevant bands. If they can keep that up, it would mean less need for amplifiers, which is a Good Thing(TM).