title: Polarization-Entangled Photon Pairs From Periodically-Poled Crystalline Waveguides Over a Range of Frequencies.
abstract: We propose a method to extend the frequency range of polarization entanglement in periodically poled rubidium-doped potassium titanyl phosphate (Rb:KTP) waveguides. Our calculations predict that output wavelengths from 1130 nm to 1257 nm may be achieved using Rb:KTP by the appropriate selection of a direction of propagation for the waveguide. The fidelity using a poling period of 1 mm is approximately 0.98.
authors.affiliation: Rochester Institute of Technology, 1 Lomb Memorial Drive, Rochester, NY 14623-5603 ; National Institute of Standards and Technology, Gaithersburg, MD 20899-8441.
authors.forename: Dylan A
authors.initials: DA
authors.lastname: Heberle
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8441.
authors.forename: Zachary H
authors.initials: ZH
authors.lastname: Levine
keywords: Rb:KTP (rubium doped potassium titanyl phosphate); entangled photons; frequency and angle tuning; periodically-poled waveguide