title: Compact source of polarization-entangled photon pairs.
abstract: We present a compact source of polarization-entangled photon pairs at a wavelength of 805 nm using a violet single-mode laser diode as the pump source of type-II spontaneous parametric down-conversion. The source exhibits entanglement and pair-rate comparable to conventional systems utilizing large frame ion lasers thus significantly increases the practicality of novel quantum information or quantum metrology applications.
authors.forename: Pavel
authors.initials: P
authors.lastname: Trojek
authors.forename: Ch
authors.initials: Ch
authors.lastname: Schmid
authors.forename: M
authors.initials: M
authors.lastname: Bourennane
authors.forename: H
authors.initials: H
authors.lastname: Weinfurter
authors.forename: Ch
authors.initials: Ch
authors.lastname: Kurtsiefer