Relationship Photons to Radio Waves? (Score 2)

What is the relationship between photons and radio waves?

The article stated that the device would be useful as a modulator converting signals from fiber optic cables or satellites. Aren't these two completely different problems? Satellite signals would need modulation through an antenna, and optical fiber signals would need modulation through an optical input.

Does this logically mean that the chip has 3 input/outputs? And can switch effortlessly between any 3? What physical form would a modulator like this take?

Also, the material can be sprayed on, but what method do they then use to etch circuits? Are there any scientists out there who can answer these questions?

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