[lukateake]

So that's why my diamond optic cables never achieved product-market fit! http://hyperphysics.phy-astr.gsu.edu/hbase/Tables/indrf.html

[hyeonwho4]

That, and how the fick do you machine diamond... regular glass fiber optics needs to be cut to a smooth surface and fused together. The devices to do this use diamond-coated blades.

Oh, and diamond has a large birefringence due to its crystal structure, which would cause temporal smear in signals.