title: High-average-power second-harmonic generation from periodically poled silica fibers.
abstract: The generation of 236 mW of second-harmonic power in a 32-cm-long periodically poled silica fiber, corresponding to an average conversion efficiency of 15.2+/-0.5%, is reported. This represents the highest normalized second-harmonic conversion and the highest average second-harmonic power ever reported for a periodically poled silica fiber, to our knowledge. The enhancement is attributed to an improved design of the specialty twin-hole fiber and the extension of the nonlinear interaction length.
authors.affiliation: Optoelectronics Research Centre, University of Southampton, SO17 1BJ, United Kingdom. asc@orc.soton.ac.uk
authors.forename: Albert
authors.initials: A
authors.lastname: Canagasabey
authors.forename: Costantino
authors.initials: C
authors.lastname: Corbari
authors.forename: Alexey V
authors.initials: AV
authors.lastname: Gladyshev
authors.forename: Flavien
authors.initials: F
authors.lastname: Liegeois
authors.forename: Sebastien
authors.initials: S
authors.lastname: Guillemet
authors.forename: Yves
authors.initials: Y
authors.lastname: Hernandez
authors.forename: Mikhail V
authors.initials: MV
authors.lastname: Yashkov
authors.forename: Alexey
authors.initials: A
authors.lastname: Kosolapov
authors.forename: Evgeny M
authors.initials: EM
authors.lastname: Dianov
authors.forename: Morten
authors.initials: M
authors.lastname: Ibsen
authors.forename: Peter G
authors.initials: PG
authors.lastname: Kazansky