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OKI Develops Light Source

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Telecommunications company OKI Electric Industry of Tokyo has announced its development of a quantum entangled light source that offers the highest purity level achieved to date. The source is based on cascaded nonlinear optical effects using a proprietary periodically poled lithium niobate ridge waveguide device operating at room temperature. Research led by professor Shuichiro Inoue at the Institute of Quantum Science at Nihon University confirms a signal-to-noise ratio more than a hundredfold better than that of optical fiber light sources. OKI will continue to refine the light source. Its goal is to achieve a practical quantum cryptography communications system.
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Published: June 2012
Asia-PacificBusinessCommunicationsInstitute of Quantum ScienceJapanLight Sourceslight speedNihon UniversityOki Electric Industryphoton purityquantum cryptographyquantum cryptography communicationsquantum cryptography technologiesquantum entangled light sourceShuichiro Inouesingle-photon detectorTakeshi KamijohLEDs

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