title: High performance photon-pair source based on a fiber-coupled periodically poled KTiOPO4 waveguide.
abstract: We demonstrate efficient generation of photon pairs at 1316 nm in a fiber-coupled type-II phase-matched Rb-indiffused waveguide in periodically poled KTiOPO(4). The integrated waveguide source has a pair production rate of 2 x 10(7)/s/mW in a 1.08-nm bandwidth, in good agreement with a theoretical model that takes into account the transversal momentum imparted on the phase matching function by the waveguide. We achieve a Hong-Ou-Mandel quantum-interference visibility of 98.2% after subtraction of accidental coincidences, representing the highest reported value for a waveguide-based photon-pair source.
authors: Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
authors: Tian
authors: T
authors: Zhong
authors: Franco N
authors: FN
authors: Wong
authors: Tony D
authors: TD
authors: Roberts
authors: Philip
authors: P
authors: Battle