Impressive
Hi Richard
Nice work picking up on the importance of single laser versus multiple lasers and wave-division multiplexing.
In the future you could also look into the uncorrected error rate, the distance (or optical loss) and if it used a ITU-specified cable (ie, something which may be in the ground versus something lab-built). That would help with the apples v oranges nature of these sort of comparisons (and I'm not at all suggesting that the variation is deliberate, merely reflective of the small number of labs working in this field, all of which make different reasonable choices in an environment where there's no pressure for interoperation).
-glen