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High-Purity Telecom-Band Entangled Photon-Pairs via Four-Wave Mixing in Dispersion-Shifted Fiber

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Abstract

We have studied the purity of entangled photon-pairs generated in a dispersion- shifted fiber at various temperatures. Two-photon interference with visibility > 98% is observed at 77K, without subtraction of the background Raman photons.

© 2005 Optical Society of America

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