Planar lightwave circuits for quantum cryptographic systems

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dc.creatorNambu, Yoshihiro
dc.creatorHatanaka, Takaaki
dc.creatorNakamura, Kazuo
dc.date2003-07-10
dc.date.accessioned2026-07-07T06:07:18Z
dc.date.available2026-07-07T06:07:18Z
dc.descriptionWe propose a quantum cryptographic system based on a planar lightwave circuit (PLC) and report on optical interference experiments using PLC-based unbalanced Mach-Zehnder interferometers (MZIs). The interferometers exhibited high-visibility (>0.98) interference even when the polarisation in the optical fibre connecting the two MZIs was randomly modulated. The results demonstrate that a PLC-based setup is suitable for achieving a polarisation-insensitive phase-coding cryptographic system.
dc.descriptionSubmitted to Electronics Letters
dc.identifierhttps://arxiv.org/abs/quant-ph/0307074
dc.identifierhttp://arxiv.org/abs/quant-ph/0307074
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91243
dc.subjectQuantum Physics
dc.titlePlanar lightwave circuits for quantum cryptographic systems
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