Relationship between the optical power and OSNR of BWS 1600G and the split ratio of the MON port on an optical amplifier board

The OSNR is proportional to the incident optical power. The split ratio of the MON port and OUT port on an OA board is 1:99. That is, the power of the MON port is 20 dB lower than that of the OUT port, which can be calculated as follows: Pout (dBm) �?Pmon (dBm) = 10 x l g (99/1) = 20 dB.

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