Advanced techniques for free-space optical quantum cryptography over water

Alexander D. Hill; Bradley Christensen; Paul G. Kwiat

doi:10.1117/12.2218270

15 March 2016 Advanced techniques for free-space optical quantum cryptography over water

Alexander D. Hill, Bradley Christensen, Paul G. Kwiat

Proceedings Volume 9739, Free-Space Laser Communication and Atmospheric Propagation XXVIII; 973911 (2016) https://doi.org/10.1117/12.2218270
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

Free-space quantum key distribution (QKD) over water (e.g., ship to ship) may be limited by ship motion and atmospheric effects, such as mode distortion and beam wander due to turbulence. We report on a technique which reduces noise by excluding spatial modes which are less likely to contain QKD signal photons and experimentally demonstrate an improvement in QKD key generation rates in various noise and turbulence regimes.

Citation Download Citation

Alexander D. Hill, Bradley Christensen, and Paul G. Kwiat "Advanced techniques for free-space optical quantum cryptography over water", Proc. SPIE 9739, Free-Space Laser Communication and Atmospheric Propagation XXVIII, 973911 (15 March 2016); https://doi.org/10.1117/12.2218270

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