Datacenter Link Budget Explorer
The three ledgers of a datacenter optical link, live in one place: the power budget as a waterfall from transmitter to receiver margin, chromatic dispersion computed from the real G.652 fiber curve for every lane, and energy per bit across pluggable, LPO, and CPO architectures, scaled to fleet size. Representative class presets for 400G, 800G, and 1.6T; every number editable, and four guided experiments that ask you to predict before they reveal.
Four two-minute experiments. Each one sets the controls, tells you where to look, and asks you to predict before it shows you.
Every lane sees the same losses, so this waterfall applies per lane. Margin here is loss margin at the FEC threshold; dispersion is accounted separately below, the way the specs do it (as an allocation, not a simple dB).
These validation rows run in your browser on every load: the dispersion model against the textbook G.652 numbers, the budget arithmetic against exact identities, and the energy math against hand calculation.
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