Very cool! related to the lens array concept that we have pioneered in CAP-MIMO! However, this approach is not true beamspace spatial reuse since different beams correspond to different frequencies via an array waveguide (as in optical fiber) – so room for improvement!
These optical fibers connect to a lens, which can be mounted to a ceiling to create an optical wireless network.
Demonstration of free-space optical quantum communication by U. Ottawa researchers.
Cioffi does it again. Exploiting waveguide modes in existing copper infrastructure using sub mmWave frequencies. Beautiful!