1.Previous
3.Next

Latency in optical fiber is largely a function of the speed of light. This would equate to a latency of 3.33 us for every kilometer of path length. The index of refraction of most fiber optic cables is about 1.5, meaning that light travels about 1.5 times as fast in a vacuum as it does in the cable. This works out to about 5.0 us of latency for every kilometer. In shorter metro networks,

1.Previous
3.Next