Abstract

We demonstrate broadband polarization-entangled photon pair generation in a poled fiber phase matched for Type II downconversion in the 1.5 μm telecom band. Even with signal–idler separation greater than 100 nm, we observe fringe visibilities greater than 97% and tangle greater than 0.8. A Hong–Ou–Mandel interference experiment is also used to experimentally confirm the broadband nature of the entanglement.

© 2013 Optical Society of America

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