  The Deep Underground Neutrino Experiment (DUNE) is a next generation long
baseline (1300 km) neutrino oscillation experiment. The neutrino beam
measurements will be performed by a near detector (ND) and far detector (FD).
The far detector will consist of four modules, installed 1,5 km deep
underground, based on Liquid Argon Time Projection Chamber (LArTPC) technology
to detect particles. The Vertical Drift (VD) LArTPC is a recent technology
proposed by the DUNE Collaboration for the second FD module. In VD, light
collection will be optimized by embedding photon detectors within the LArTPC
cathode, which is biased at -300 kV. As result, power must arrive to the Photon
Detection System (PDS) and signal must be transmitted via non-conductive
material. The proposed solution is to use Power-over-Fiber (PoF) and
Signal-over-Fiber (SoF). An intense validation of the system is being performed
by the Collaboration at the CERN Neutrino Platform, design and results from
data collected over the first half of 2022 are presented.
