Fiber Link Budget Helper

Live Now: estimate optical loss, receive power, and margin before site work. Output is print-ready in dB/dBm.

Link Setup

Site / Link Name

Fiber Type

Fiber Length (km)

Fiber Attenuation (dB/km)

Transmitter Power (dBm)

Receiver Sensitivity (dBm)

Connector Count

Loss per Connector (dB)

Splice Count

Loss per Splice (dB)

Splitter Loss (dB)

Other Fixed Loss (dB)

Safety Margin Target (dB)

Required minimum receive level is sensitivity + safety margin.

Total Path Loss

Estimated Receive Power

Margin vs Sensitivity

Status (with Safety Margin)

Component	Formula	Loss (dB)
Max Allowable Loss		-
Effective Margin (after safety target)		-

Metric	Value