title: Generation of pulsed polarization-entangled photon pairs in a 1.55-microm band with a periodically poled lithium niobate waveguide and an orthogonal polarization delay circuit.
abstract: We report a scheme for generating pulsed polarization-entangled photon pairs based on conversion from time-bin entanglement to polarization entanglement by use of an orthogonal polarization delay circuit and post-selection. We have experimentally demonstrated the scheme, using a periodically poled lithium niobate waveguide, and successfully obtained polarization entanglement in the 1.55-microm telecom wavelength band.
authors.affiliation: NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, Japan. htakesue@will.brl.ntt.co.jp
authors.forename: Hiroki
authors.initials: H
authors.lastname: Takesue
authors.forename: Kyo
authors.initials: K
authors.lastname: Inoue
authors.forename: Osamu
authors.initials: O
authors.lastname: Tadanaga
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Nishida
authors.forename: Masaki
authors.initials: M
authors.lastname: Asobe