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Title: A bright PPKTP waveguide source of polarization entangled photons

The need for bright efficient sources of entangled photons has been a subject of tremendous research over the last decade. Researchers have been working to increase the brightness and purity to help overcome the spontaneous nature of the sources. Periodic poling has been implemented to allow for the use of crystals that would not normally satisfy the phase matching conditions. Utilizing periodic poling and single mode waveguide confinement of the pump field has yielded extremely large effective nonlinearities in sources easily producing millions of photon pairs. Here we will demonstrate these large nonlinearity effects in a periodically poled potassium titanyl phosphate (PPKTP) waveguide as well as characterizing the source purity.
 [1] ;  [1] ;  [1] ;  [2] ;  [1] ;  [3]
  1. United States Air Force Research Laboratory, Wright-Patterson Air Force Base
  2. Rochester Institute of Technology (RIT), New York
  3. ORNL
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Resource Relation:
Conference: SPIE Defense, Security and Sensing technologies, Baltimore, MD, USA, 20150420, 20150420
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
ORNL work for others
Country of Publication:
United States