> In addition to the refraction index, you’d expect fibre optics to have another limiting factor: scatter. Fiber optics have lots of limiting factors: power li

> In addition to the refraction index, you’d expect fibre optics to have another limiting factor: scatter. Fiber optics have lots of limiting factors: power limits, chromatic and polarization mode dispersion, spectral attenuation, manufacturing imperfections, crosstalk, ... Fiber optics are just better than a lot of other mediums, but that does not mean there aren't limitations.