Transoceanic Phase and Polarization Fiber Sensing using Real-Time Coherent Transceiver

We implement a real-time coherent transceiver with fast streaming outputs for environmental sensing. Continuous sensing using phase and equalizer outputs over 12800 km of a submarine cable is demonstrated to enable time resolved spectroscopy in broad spectral range of 10 mHz 1 kHz.

[1]  Ezra Ip,et al.  Field Trial of Vibration Detection and Localization using Coherent Telecom Transponders over 380-km Link , 2021, 2021 Optical Fiber Communications Conference and Exhibition (OFC).

[2]  Fabrice Ardhuin,et al.  How ocean waves rock the Earth: Two mechanisms explain microseisms with periods 3 to 300 s , 2015 .

[3]  Z. Zhan,et al.  Polarization sensing using submarine optical cables , 2021 .

[4]  Davide Calonico,et al.  Ultrastable laser interferometry for earthquake detection with terrestrial and submarine cables , 2018, Science.

[5]  Z. Zhan,et al.  Optical polarization–based seismic and water wave sensing on transoceanic cables , 2021, Science.

[6]  J. Tromp,et al.  The origin of secondary microseism Love waves , 2020, Proceedings of the National Academy of Sciences.

[7]  M. Karlsson,et al.  Correlation Metric for Polarization Changes , 2018, IEEE Photonics Technology Letters.

[8]  O. Karlsson,et al.  Long-term measurement of PMD and polarization drift in installed fibers , 2000, Journal of Lightwave Technology.

[9]  S. Savory Digital Coherent Optical Receivers: Algorithms and Subsystems , 2010, IEEE Journal of Selected Topics in Quantum Electronics.

[10]  Jonathan B. Ajo-Franklin,et al.  Illuminating seafloor faults and ocean dynamics with dark fiber distributed acoustic sensing , 2019, Science.

[11]  Per Larsson-Edefors,et al.  Energy-Efficient Implementation of Carrier Phase Recovery for Higher-Order Modulation Formats , 2021, Journal of Lightwave Technology.