Distributed temperature sensing data and OTDR data from "Impacts of hydrostatic pressure on Distributed Temperature Sensing Optical Fibers for extreme ocean and ice environments" by Tyler, Silvia, Jakuba, Durante and Winebrenner accepted to Photonics June 2024

The data set uploaded here provides raw data from experiments designed to test the impact of high pressure on Raman backscatter distributed temperature sending. The work is under consideration for the journal Photonics.In this work, we demonstrate the viability of unreinforced fiber tethers (bare fiber) for Raman-based distributed temperature sensing in deep ocean and deep ice environments. High pressure testing of single mode and multimode optical fiber showed little to no changes in light attenuation over pressures from atmospheric to 600 bars. Most importantly the differential attenuation between Stokes and anti-Stokes frequencies, critical for the evaluation of distributed temperature sensing, was shown to be insignificantly affected by fluid pressures over the range of pressures tested for single mode fiber, and only very slightly affected in multimode fiber. For multimode fiber deployments to ocean depths as great at 6000 m, the effect of pressure dependent differential attenuation was shown to impact the estimated temperatures by only 0.15 ^oK. These new results indicate that bare fiber tethers, in addition to use for communication can be used for distributed temperature or strain in fibers subjected to large depth (pressure) varying environments such as deep oceans, glaciers and potentially the icy moons of Saturn and Jupiter.<br>