State of Polarization describes the orientation and temporal behavior of the electric field vector of an optical wave as it propagates. It characterizes whether light is linearly, circularly, or elliptically polarized, and how the field components evolve in amplitude and phase. In optical systems, the state of polarization affects signal transmission, interference, and sensing performance, and is often represented using parameters such as Stokes vectors or Jones vectors.
We report the first field study of the phase and polarization dynamics of deployed antiresonant hollow core fiber cable in a data center interconnect for real-world vibration sensing,revealing enhanced phase sensitivity and significantly faster polarization angular rate compared with standard single mode fibers.
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