Quick answer: a practical fiber optic latency estimate is about 5 microseconds per kilometer one way, or 0. 010 ms/km, before adding transceiver, FEC, switch-hop and queueing delay. Increased insertion loss of components will reduce the signal-to-noise ratio of the collected signal, ultimately limiting the measurement accuracy of the. Wang K, Liu A, Kong X, Wu Z, Zhang R and Zhang W (2024), Design of optical ber delay fi line with large delay range and low insertion loss. 1362101 2024 Wang, Liu, Kong, Wu, Zhang and Zhang. This is an open-access article distributed under the terms. Temporal delays or latency in optical fiber refer to the time it takes for a light signal to travel a certain distance from the source to the receiver. This reduction in speed is determined by the material's Group Refractive Index (n). Latency is. Fiber Length: Kilometers (km) Miles (mi) Meters (m) Feet (ft) The physical length of the fiber optic cable.
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