Seems like visible light could work better, and BTW, why do we need to hide it in fiber anyway?
While I feel that the need for such measures should be mostly easily avoided by proper network design and implementation, and most times this sort of issue could best be resolved by stringing some more fiber, I also suspect that there is some niche out there for a 60GHZ wireless implementation. However, my thoughts went immediately towards using visible light (or thereabout) Comm type lasers (as mentioned earlier) which should offer greater capacity and avoid most of the challenges of 60GHZ ( capacity, security, interference, etc), and, with a bit of motor control offer serious flexibility and things like "self configuration" (and kill stray bugs - insects :). In fact, could such technology replace actual fiber? If the data is being carried by light and we have short haul line of sight access, why not just leave out the fiber? It would simplify installations enormously if we didn't have to string data cables