title: Photon pair source based on parametric fluorescence in periodically poled twin-hole silica fiber.
abstract: We present observations of quasi-phase matched parametric fluorescence in a periodically poled twin-hole silica fiber. The phase matching condition in the fiber enables the generation of a degenerate signal field in the fiber-optic communication band centered on 1556 nm. We performed coincidence measurements and a Hong-Ou-Mandel experiment to validate that the signal arises from photon pairs. A coincidence peak with a signal to noise ratio (SNR) of 4 using 43 mW of pump power and a Hong-Ou-Mandel dip showing 40% net visibility were measured. Moreover, the experiments were performed with standard single mode fibers spliced at both ends of the poled section, which makes this source easy to integrate in fiber-optic quantum communication applications.
authors.affiliation: Service d'Optique et Acoustique, Université Libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 194/5, 1050 Bruxelles, Belgium. kphanhuy@ulb.ac.be
authors.forename: Kien
authors.initials: K
authors.lastname: Phan Huy
authors.forename: Anh Tuan
authors.initials: AT
authors.lastname: Nguyen
authors.forename: Edouard
authors.initials: E
authors.lastname: Brainis
authors.forename: Marc
authors.initials: M
authors.lastname: Haelterman
authors.forename: Philippe
authors.initials: P
authors.lastname: Emplit
authors.forename: Costantino
authors.initials: C
authors.lastname: Corbari
authors.forename: Albert
authors.initials: A
authors.lastname: Canagasabey
authors.forename: Peter G
authors.initials: PG
authors.lastname: Kazansky
authors.forename: Olivier
authors.initials: O
authors.lastname: Deparis
authors.forename: Andrei A
authors.initials: AA
authors.lastname: Fotiadi
authors.forename: Patrice
authors.initials: P
authors.lastname: Mégret
authors.forename: Serge
authors.initials: S
authors.lastname: Massar