one-way propagation delay in single-mode fiber (index ~1.47); ~5 us/km rule of thumb, ~10 us/km round-trip
~4.9 µs/kmderived
| Value kind | derived — Derived values are guide calculations; their result is only as fixed as the stated inputs, scope, and method. |
|---|---|
| As of | 2026-10-12 |
| Source | Guide derivation from c and n≈1.47; M2 Optics (2012-01-09) · n/c = 1.47/299,792,458 m/s = 4.9034 µs/km |
| Review | checking…review by 2027-10-12 · slow cadence |
| Recorded changes | last 2026-10-12 · 3 revisions tracked |
| Claim id | one-way-propagation-delay-in-single-mode-fiber |
Where the guide uses it
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