Modeling daytime sky access for a satellite quantum key distribution downlink

被引：22

作者：

Gruneisen, Mark T. ^{[1
]}

Flanagan, Michael B. ^{[2
]}

Sickmiller, Brett A. ^{[2
]}

Black, James P. ^{[3
]}

Stoltenberg, Kurt E. ^{[3
]}

Duchane, Alexander W. ^{[1
]}

机构：

[1] Air Force Res Lab, Directed Energy Directorate, Kirtland AFB, NM 87117 USA

[2] Leidos, Albuquerque, NM 87106 USA

[3] Boeing Co, Albuquerque, NM 87185 USA

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 18期

关键词：

CRYPTOGRAPHY; POLARIZATION; DAYLIGHT;

D O I：

10.1364/OE.23.023924

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Daytime sky radiance can lead to quantum-bit-error rates (QBER) sufficiently high to preclude quantum key distribution over satellite-to-Earth downlinks. For circular orbits, sky radiance and propagation losses are both pointing-angle-dependent quantities. This dependence makes it possible to map the sky as a function of the QBER in certain protocols. Sky radiance distributions are generated by libRadtran software with aerosol values representative of summer and winter. Hemispherical maps of the QBER are created for orbit altitudes of 400 and 800 km. Sunrise-to-sunset simulations are presented for a system with commercial optical components and compared to a case employing an atomic-line spectral filter. (C) 2015 Optical Society of America

引用

页码：23924 / 23934

页数：11

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