title: Bragg reflection waveguide as a source of wavelength-multiplexed polarization-entangled photon pairs.
abstract: We put forward a new highly efficient source of paired photons entangled in polarization with an ultra-large bandwidth. The photons are generated by means of a conveniently designed spontaneous parametric down-conversion process in a semiconductor type-II Bragg reflection waveguide. The proposed scheme aims at being a key element of an integrated source of polarization-entangled photon pairs highly suitable for its use in a multi-user quantum-key-distribution system.
authors: ICFO-Institut de Ciencies Fotoniques, UPC, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain. jiri.svozilik@icfo.es
authors: Jiří
authors: J
authors: Svozilík
authors: Martin
authors: M
authors: Hendrych
authors: Juan P
authors: JP
authors: Torres