Efficient, narrowband PPKTP source for polarization entangled photons
Siddarth Koduru Josh, Felix Anger, Antı́a Lamas-Linares, Christian Kurtsiefer · 2011
We present a PPKTP based source for polarization-entangled photon pairs with an efficiency for generating photon pairs into singlemode fibers that should be high enough for a loophole free test of a Bell inequality.