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Publication Citation: Mode Expansion and Bragg Filtering Enable a High-Fidelity Fiber-Based Photon-Pair Source

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Author(s): Alexander E. Ling; Jun Chen; Jingyun Fan; Alan L. Migdall;
Title: Mode Expansion and Bragg Filtering Enable a High-Fidelity Fiber-Based Photon-Pair Source
Published: November 09, 2009
Abstract: We report the development of a fiber-based single spatial mode source of photon-pairs where the efficiency of extracting photon-pairs is 15x better than a previous implementation [16]. This critical improvement in efficiency enabled a spectrally bright and pure photon-pair source having a small second-order correlation function (0.03) and a raw spectral brightness of 44,700 pairs /(s nm mW). The source can be configured to generate entangled photon-pairs, characterized via optimal and minimal quantum state tomography, to have a fidelity of 97% and tangle of 92%.
Citation: Optics Express
Volume: 17
Pages: pp. 21302 - 21312
Keywords: Photon-Pair Source; Photonic Crystal Fiber; Polarization-Entanglement
Research Areas: Quantum Optics, Single Photon Detectors, Entangled Photons, Quantum Devices, Single Photon Sources, Correlated Photon Radiometry, Quantum Information Technology, Quantum Physics
PDF version: PDF Document Click here to retrieve PDF version of paper (188KB)