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arXiv · 1212.4780

Generating polarization-entangled photon pairs using cross-spliced birefringent fibers

Evan Meyer-Scott·Vincent Roy·Jean-Philippe Bourgoin·Brendon L. Higgins·Lynden K. Shalm·Thomas Jennewein
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Abstract

We demonstrate a novel polarization-entangled photon-pair source based on standard birefringent polarization-maintaining optical fiber. The source consists of two stretches of fiber spliced together with perpendicular polarization axes, and has the potential to be fully fiber-based, with all bulk optics replaced with in-fiber equivalents. By modelling the temporal walk-off in the fibers, we implement compensation necessary for the photon creation processes in the two stretches of fiber to be indistinguishable. Our source subsequently produces a high quality entangled state having (92.2 \pm 0.2) % fidelity with a maximally entangled Bell state.

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Evan Meyer-Scott, Vincent Roy, Jean-Philippe Bourgoin, Brendon L. Higgins, Lynden K. Shalm, Thomas Jennewein. 2012-12-19. Generating polarization-entangled photon pairs using cross-spliced birefringent fibers. https://doi.org/10.1364/oe.21.006205

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