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Telecom Narrow Bandwidth Two-photon Source with High Fidelity Polarization Entanglement

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We demonstrate two-photon sources for long-distance quantum communication. The highest spectral brightness 3.94×105 pairs/(s MHz mW), the narrowest linewidth in telecom of 1.06 MHz and entanglement fidelity of 91.8% are shown.

© 2019 The Author(s)

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