How to calculate the optical attenuation in a passive optical network(PON)?

spec. of PLC Splitter

Typical Value of Insertion Loss

Maximum Deviation Range Between Ports

Testing Instrument

1:2 50%-50%

3.4 dB

0.4 dB

Optical Power Meter

1:2 5%-95%

11.8 dB : 0.6 dB

0.4 dB

Optical Power Meter

1:2 10%-90%

10.4 dB : 0.9 dB

0.4 dB

Optical Power Meter

1:2 20%-80%

7.4 dB : 1.3 dB

0.4 dB

Optical Power Meter

1:2 30%-70%

5.6 dB : 1.9 dB

0.4 dB

Optical Power Meter

1:2 40%-60%

4.4 dB : 2.6 dB

0.4 dB

Optical Power Meter

1:4 equal division

7.2 dB

0.8 dB

Optical Power Meter

1:8 equal division

10.7 dB

1.7 dB

Optical Power Meter

1:16 equal division

14.8 dB

2.0 dB

Optical Power Meter

1:32 equal division

17.8 dB

2.5 dB

Optical Power Meter


1:2 PLC splitter attenuation is 3.01 dB
1:8 PLC splitter attenuation is 9.03 dB
1:16 PLC splitter attenuation is 12.04 dB
1:32 PLC splitter attenuation is 15.05 dB
1:64 PLC splitter attenuation is 18.06 dB

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