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Front Cover: Entanglement distribution over 150 km in wavelength division multiplexed channels for quantum cryptography (Laser Photonics Rev. 10(3)/2016)
Publication year - 2016
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201670035
Subject(s) - photonics , multiplexing , quantum entanglement , physics , quantum cryptography , telecommunications , laser , photon , computer science , cryptography , cover (algebra) , optics , quantum information , quantum , quantum mechanics , engineering , computer security , mechanical engineering
A laser pumps a nonlinear waveguide generating energy‐time entangled photons via parametric down‐conversion. The emitted broadband spectrum is directly collected into a telecom fiber. Thanks to demultiplexing, multiple pairs of users are entangled when supplied with pairs of photons having complementary wavelengths. Additionally, local demultiplexing allows each pair of users to obtain a count rate increase equal to the number of exploited channel pairs. (Picture: Djeylan Aktas et al., 10.1002/lpor.201500258 pp. 451–457, in this issue)