DWDM Link Budget Planner
Live
Build your link topology span-by-span. Configure fiber types (G.652/G.654/G.655), distances, and amplifier chains. Real-time cascaded OSNR and link budget calculations following ITU-T standards.
Open to improvement. For engineering planning — may not exactly match real-world deployment scenarios. See methodology insights for background.
Spectrum & Link Configuration
Hop-by-Hop Topology
Link Telemetry
Total Distance
0 km
Final Rx Power
0 dBm
Rx Sensitivity
0 dBm
Achieved OSNR
0 dB
Required OSNR
0 dB
System Margin
0 dB
Fiber Type Reference
G.6520.20 dB/km — Standard SMF
G.6530.20 dB/km — DSF (NL risk)
G.6540.17 dB/km — Ultra Low Loss
G.6550.20 dB/km — NZDSF (NL risk)
G.6570.22 dB/km — Bend-insensitive