Optical Budget Tool
GPON Splitter Calculator
Design reliable PON networks. Compute your optical power budget across fiber, splitters, connectors and splices in real time.
GPON / EPON
•
1:2 – 1:128
•
Instant, no sign-up
5 km fiber
1:8
−13.65 dB total
OLT & Fiber Configuration
dBm
Class B+: +1.5 to +5 dBm
km
G.652: 0.35 dB/km @ 1310nm
Passive Optical Network (ODN)
SC/APC avg 0.5 dB
Fusion avg 0.1 dB
ONU Rx Power
Perfect Signal
-10.65
dBm
- Total Loss
- −13.65 dB
- Fiber Loss (5 km)
- 1.75 dB
- Passive Components
- 11.9 dB
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Calculating the optical power budget is critical for designing a reliable GPON (Gigabit Passive Optical Network). You must ensure that the total signal loss does not exceed the dynamic range of your optical transceivers.
Typical Loss Values
- Fiber Cable (G.652): 0.35 dB/km at 1310nm, 0.22 dB/km at 1490nm.
- Connector (SC/APC): 0.3 - 0.5 dB per mated pair.
- Mechanical Splice: 0.1 - 0.3 dB.
- Fusion Splice: < 0.05 dB.
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