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We report on the effect of the partially polarized amplified spontaneous emission noise on the Q-factor estimation by using optical signal-to-noise ratio. The result shows that this effect is negligible even in a long-distance transmission system (number of spans: <40) as long as the polarization-dependent loss per span is smaller than 0.2 dB
We report on the effect of the partially polarized amplified spontaneous emission (ASE) noise on the Q-factor estimation by using optical signal-to-noise ratio (OSNR). The result shows that this effect is negligible even in a long-distance transmission system (distance: < 3000 km) as long as the polarization-dependent loss (PDL) per span is smaller than 0.2 dB
We analyzed the probability of errors in the measured optical signal-to-noise ratios by using the polarization-nulling technique, when the amplified spontaneous emission noise is partially polarized due to the polarization-dependent loss in the transmission link
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