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Conference 11993 > Paper 11993-26
Paper 11993-26

Enabling efficient quantum communications with adaptive optics

Abstract

Superconducting nanowire detectors fed by single mode fibres are essential to minimize dark counts in a quantum communication receiver. Efficient coupling of the received light to the single mode fibre is fundamental for the system performance, but it gets deeply affected by the atmospheric turbulence. Adaptive Optics measure and correct for the atmosphere effect on the light optimising the fibre coupling. An Adaptive Optics system is proposed to be installed at the ground station that will receive quantum key distribution from a geostationary satellite. Numerical simulations have been performed for this scenario; the improvement in the fibre coupling have been assessed with and without atmospheric turbulence correction. The present paper encapsulates the simulation framework and main findings, showing the potential for this technology in the quantum communications niche.

Presenter

The Australian National Univ. (Australia)
Dr Noelia Martínez is a postdoctoral researcher working in Adaptive Optics at the Australian National University Advanced Instrumentation and Technology Centre in Canberra, Australia. She obtained with PhD degree in the University of La Laguna, Canary Islands (Spain) in September 2019, on the topic “Adaptive Optics for Free Space Optical Communications and generation of Laser Guide Stars”. Her primary areas of interest are astronomical and space instrumentation, focusing onto the adaptive optics and laser systems technologies.
Presenter/Author
The Australian National Univ. (Australia)
Author
Instituto de Astrofísica de Canarias (Spain)
Author
Instituto de Astrofísica de Canarias (Spain)
Author
Instituto de Astrofísica de Canarias (Spain)
Author
Instituto de Astrofísica de Canarias (Spain)
Author
Instituto de Astrofísica de Canarias (Spain)
Author
Instituto de Astrofísica de Canarias (Spain)
Author
Instituto de Astrofísica de Canarias (Spain)