4 ms·
> light bounces off the walls of the fibre optics cable This is true of multimode fibre, but not single mode. Long haul communications cables are single mode.
by packet_nerd 8y ago
> light bounces off the walls of the fibre optics cable
This is true of multimode fibre, but not single mode. Long haul communications cables are single mode.
https://en.wikipedia.org/wiki/Single-mode_optical_fiber https://en.wikipedia.org/wiki/Single-mode_optical_fiber
- Denvercoder9 8y agoEven for multimode fiber it's a huge simplification of the actual physics. The actual cause of the speed difference, for both single and multimode fibers, is the index of refraction of glass.