Fiber optic link budget calculator



	Fiber Optic link Budget Calculator


Cable Plant	Input Data For Cable	Calculated Loss (dB)

Cable/Fiber Length (km)
Fiber Attenuation (dB/km)

Number of Splices
Loss/Splice (dB)

Number of Connections
Loss/Connection (dB)

Link Loss Budget (dB)


Typical Loss Values
Fiber Attenuation (dB/km)
MM,850nm	3
MM, 1300nm	0.8
SM 1310nm	0.4
SM, 1550nm	0.2
Splice Loss (dB)
SM	0.15
MM	0.3
Connection Loss (dB)
MM, 1 fiber	0.5
MM, array (12/24)	0.75
SM	0.5


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