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Updated: Jul 19, 2026
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Generation of narrow-bandwidth paired photons: use of a single driving laser
Pavel Kolchin1, Shengwang Du, Chinmay Belthangady
1Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA.
Physical Review Letters
|October 10, 2006
Abstract:
We describe a generator of narrow-band paired photons. A single retroreflected Ti:sapphire laser is used to cool, render transparent, and parametrically pump a cloud of (87)Rb atoms. We attain a paired-photon generation rate into opposing fibers of 600 counts/s with an intensity correlation function that has a width of 5 ns, and violates the Cauchy-Schwartz criteria by a factor of 2000.
