Abstract
We demonstrate the capability of standard, commercially available polarization-maintaining fibers (PMFs) to generate polarization-entangled photon-pairs by inserting a PMF source into a Sagnac interferometer. We perform a quantum state tomography to reconstruct the density matrix, yielding, without background subtraction or spectral filtering, a polarization-entangled photon-pair state with 92.37 ± 0.14% fidelity to the maximally entangled Bell state. With its high coupling efficiency into SMFs and ability to produce spectrally uncorrelated photons, we expect this source to be useful for free-space and fiber-based quantum information protocols.
Original language | English (US) |
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Article number | 012007 |
Journal | Journal of Physics: Conference Series |
Volume | 414 |
Issue number | 1 |
DOIs | |
State | Published - 2013 |
Externally published | Yes |
Event | 21st International Laser Physics Workshop - Calgary, AB, Canada Duration: Jul 23 2012 → Jul 27 2012 |
ASJC Scopus subject areas
- Physics and Astronomy(all)