2015
DOI: 10.17159/sajs.2015/20130380
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Towards polarisation-encoded quantum key distribution in optical fibre networks

Abstract: Quantum key distribution – a process that encodes digital information – often utilises fibre optic technologies for commercial applications. Fibre provides the benefit of a dark channel as well as the convenience of independence of a line-of-sight connection between the sender and receiver. In order to implement quantum key distribution protocols utilising polarisation encoding, the birefringence effects of fibre must be compensated for. Birefringence is caused by manufacturing impurities in the fibre or a cha… Show more

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Cited by 2 publications
(1 citation statement)
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“…The modification entails changing the randomness of the bit and basis selection in the QTx, which would also decrease final KER of the system. However, many events during photon transmission through the channel can impact the measurements in the QRx, which would result into bases mismatches [Pi15]. Specifically, polarization-encoded QKD can be degraded by SOP distortion induced by the long fiber between QTx and QRx, as well as by environmental events occurred in the quantum channel.…”
Section: Introductionmentioning
confidence: 99%
“…The modification entails changing the randomness of the bit and basis selection in the QTx, which would also decrease final KER of the system. However, many events during photon transmission through the channel can impact the measurements in the QRx, which would result into bases mismatches [Pi15]. Specifically, polarization-encoded QKD can be degraded by SOP distortion induced by the long fiber between QTx and QRx, as well as by environmental events occurred in the quantum channel.…”
Section: Introductionmentioning
confidence: 99%