Measuring the Optical Signal-to-Noise Ratio in Agile Optical Networks
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Measuring the Optical Signal-to-Noise Ratio in Agile Optical Networks
- Author:
Wolfgang Moench, Julia Larikova
The optical signal-to-noise ratio (OSNR) is the key performance parameter in optical networks that predicts the bit error rate (BER) of the system. OSNR measurements and calibration have been performed using an interplation method. In this case, the OSNR is obtained by measuring the total signal power in the channel passband and the amplified spontaneous emission (ASE) noise in the gaps between the optical channels (normalized to a 0.1 nm bandwidth).
