Abstract

We experimentally demonstrate a bright pulsed source of correlated photon pairs at the 1550nm telecom band by pumping 300m dispersion-shifted fiber with a 4ps pulse train. We investigate the coherence property of the source by measuring the second-order intensity correlation function g(2) of individual signal (idler) photons. A preliminary Hong–Ou–Mandel-type two-photon interference experiment with two such sources confirms the high temporal and spatial coherence of the source. The source is suitable for multiphoton quantum interference of independent sources, which is required in quantum information processing.

© 2008 Optical Society of America

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