Optical Latency Stack Decomposer
Toggle DSP, FEC, fiber length, and optical switches to see cumulative latency for free-space optics (FSO) versus co-packaged optics (CPO). Numbers derive from Ayar Labs, IEEE JLT, and hyperscaler deployment whitepapers.
Latency contributions: FEC 60–120 ns (100G PAM4), DSP & serializers 25–45 ns, fiber propagation 5 ns/m (index-adjusted), MEMS control 3–6 ns, optical switches 7 ns each. Sources: Ayar Labs 2024 in-package optical IO; IEEE JLT 2023; hyperscaler co-packaged optics briefings.