Abstract
We demonstrate a novel alignment-free all-fiber source for generating telecom-band polarization-entangled photon pairs. Polarization entanglement is created by injecting two relatively delayed, orthogonally polarized pump pulses into a piece of dispersion-shifted fiber, where each one independently engages in four-photon scattering, and then removing any distinguishability between the correlated photon-pairs produced by each pulse at the fiber output. Our scheme uses a Michelson-interferometer configuration with Faraday mirrors to achieve practically desirable features such as ultra-stable performance and turnkey operation. Up to 91.7% two-photon-interference visibility is observed without subtracting the accidental coincidences that arise from background photons while operating the source at room temperature.
Original language | English (US) |
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Pages (from-to) | 6936-6941 |
Number of pages | 6 |
Journal | Optics Express |
Volume | 14 |
Issue number | 15 |
DOIs | |
State | Published - 2006 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics