Optical polarization–based seismic and water wave sensing on transoceanic cables

@article{Zhan2021OpticalPS,
  title={Optical polarization–based seismic and water wave sensing on transoceanic cables},
  author={Zhongwen Zhan and Mattia Cantono and Valey Kamalov and Antonio Mecozzi and Rafael M{\"u}ller and Shuang Yin and Jorge C. Castellanos},
  journal={Science},
  year={2021},
  volume={371},
  pages={931 - 936}
}
Waiting for earthquakes to call Instrumenting the vast ocean floor is difficult and expensive but important for monitoring earthquakes and tsunamis. Zhan et al. used the polarization of regular telecommunication traffic to detect earthquakes and water swells in a 10,000-kilometer-long fiber-optic submarine cable (see the Perspective by Wilcock). The deep-water Curie cable is not as noisy as terrestrial counterparts, allowing the authors to detect strain from the cable. Results from the 9-month… Expand
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Present-day underwater earthquake sensors like ocean bottom seismometers require a high cost to build and deploy. Installing existing submarine fibers into an interferometer is, on the other hand, aExpand
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3D fully coupled acoustic-elastic model with gravity of the 2018 Sulawesi supershear earthquake and local tsunami in Palu Bay generates a clearly visible Mach cone altering the acoustic response of the ocean. Expand
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https://doi.org/10.22002/D1.1668. ACKNOWLEDGMENTS We thank U. Holzle for initiating the subsea-based earthquake detection project
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