The "I" stands for "Institute", not "International".
While this issue may be oriented towards the technologies you cite, other issues cover the whole field.
In communications technology, Europe and Asia are now as advanced as the US. This was not the case as recently as the '80s.
Besides the research work being done outside the US, there are excellent commercial companies, e.g. Nokia in wireless, Bookham in integrated optics, JDS Uniphase in optical components, etc.
The US doesn't have any particular lead in lambda networking. Unless, lacking a George Gilder, they have a "hype gap".