Photon Counting and Super Homodyne Detection of Weak QPSK Signals for Quantum Key Distribution

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We compare the principles and experimental results of two different QPSK signal detection configurations, photon counting and super homodyning, for applications in fiber-optic Quantum Key Distribution (QKD) systems operating at telecom wavelength, using the BB84 protocol.
2 pages, 3 figues, EOS Annual Meeting 2006, Topical Meeting on Extreme Optics (QEOD/EPS), Paris, Oct. 2006

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/119719

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/quant-ph/0611123
 http://arxiv.org/abs/quant-ph/0611123
 EOS 2006 Annual meeting Proceeding

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arXiv