PT Journal
AU Zhong, T
   Hu, X
   Wong, FNC
   Berggren, KK
   Roberts, TD
   Battle, P
TI High-quality fiber-optic polarization entanglement distribution at 1.3 μm telecom wavelength
SO Optics Letters
JI Opt. Lett.
PY 2010
BP 1392
EP 1394
VL 35
IS 9
AB We demonstrate high-quality distribution of 1.3 μm polarization-entangled photons generated from a fiber-coupled periodically poled KTiOPO4 waveguide over 200 m fiber-optic cables. Time-multiplexed measurements with a 19% efficient superconducting nanowire single-photon detector at the remote location show a detected flux of 5.8 pairs / s at a pump power of 25 μW and an average two-photon quantum-interference visibility of 97.7% without subtraction of accidentals.
ER