QKD USING HIGH-ALTITUDE PALTFORMS
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United States of America Patent
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Issued Date -
Jul 1, 2010
app pub date -
Sep 7, 2007
filing date -
Sep 11, 2006
priority date (Note) -
Abandoned
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Abstract
′), an optical synchronization channel that carries synchronization signals (PS) and optionally classical communication signals (PC), an optical beacon channel that carries beacon signals (PB), and a radio-frequency (RF) channel that carries RF signals. The beacon signals are used to detect changes in the optical path and correct the synchronization signals (PB) so as to gate the first and second SPD pairs to correspond to arrival times of the quantum signals at said first and second SPD pairs. The system does not require a Pockels cell for quantum signal modulation, thereby improving the security of the system.
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