Analysis of polarization drift of optical signals over deployed aerial-inground fiber connections

Abstract:Polarization measurements of a classical 1550-nm signal are collected and analyzed on 15-km hybrid aerial-inground fiber connections over 11 months. The spectral area and spectral moments of mHz-resolution Fast-Fourier-Transform (FFT) of these measurements are extracted, and related to temperature, humidity, wind speed, and time of day. Spectral area correlations show a strong diurnal structure: daytime maxima align with temperatures/wind speed peaks and humidity dips, with lower levels during the night. These diurnal patterns also show seasonality, with higher mean and variance in summer than winter. A random forest regressor is used to estimate FFT features from environmental measurements, informed by a theoretical model

Quantum Physics (quant-ph); Data Analysis, Statistics and Probability (physics.data-an); Optics (physics.optics)

arXiv:2607.07629 [quant-ph]

(or arXiv:2607.07629v2 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2607.07629 Focus to learn more arXiv-issued DOI via DataCite

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