seems suspiciously too good to be true. one petahertz? lawl...
also, a lot of their descriptions sound like a 6th grader who just learned how to use cuss words. they are flaunting big words left and right trying to impress the reader, but not much of the descriptions make sense without several re-reads and interpretation.
how do they even say the input to one of their optical lines is small signal? id like to see some more info on this because if it were really this advanced, we would have heard a lot more about it.