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Increased Power Budget from Rayleigh Backscattering Suppression by λ-shifting in UD-WDM PONs

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Abstract

We show that Rayleigh Backscattering rejections through upstream/downstream (US/DS) carrier λ-shifting result in power budget gains in low-cost single laser coherent transceivers. We measure BER of a DPSK signal with varying US/DS spectral spacing.

© 2021 The Author(s)

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