Characterization of an underwater channel for quantum communications in the 
Ottawa River

Hufnagel, Felix; Sit, Alicia; Grenapin, Florence; Bouchard, Frederic; Heshami, Khabat; England, Duncan; Zhang, Yingwen; Sussman, Benjamin J.; Boyd, Robert W.; Leuchs, Gerd; Karimi, Ebrahim

doi:10.1364/OE.27.026346

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Characterization of an underwater channel for quantum communications in the Ottawa River

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Leuchs, Gerd
Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Hufnagel, F., Sit, A., Grenapin, F., Bouchard, F., Heshami, K., England, D., et al. (2019). Characterization of an underwater channel for quantum communications in the Ottawa River. OPTICS EXPRESS, 27(19), 26346-26354. doi:10.1364/OE.27.026346.

Cite as: https://hdl.handle.net/21.11116/0000-000F-91EF-0

Abstract

We examine the propagation of optical beams possessing different polarization states and spatial modes through the Ottawa River in Canada. A Shack-Hartmann wavefront sensor is used to record the distorted beam's wavefront. The turbulence in the underwater channel is analysed, and associated Zernike coefficients are obtained in real-time. Finally, we explore the feasibility of transmitting polarization states as well as spatial modes through the underwater channel for applications in quantum cryptography. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement