But it is directly internet related. If you check the actual paper [0] - I had to search for it - you will see this quote:
We demonstrate transmission over 75 km of fibre in the
laboratory as well as in a field trial over an installed
network in the greater metropolitan area of Melbourne,
Australia.
Technically that 75 km was between two different labs running on dark fiber. They state more detail in this quote:
These cables were routed from the labs access panels,
to an interconnection point with the AARNet’s fibre
network.
