title: Ion-exchanged Er3+/Yb3+ co-doped waveguide amplifiers longitudinally pumped by broad area lasers.
abstract: A multimode pumping scheme for Er(3+)/Yb(3+) co-doped waveguide amplifiers based on broad area lasers at around 980 nm is presented. The proposed amplifier is fabricated by ion-exchange (IE) technique on silicate and phosphate glasses. The highly efficient energy transfer from Yb(3+) to Er(3+) ions, combined with the use of low cost and high power broad area laser, allows the realization of high performance and cost-effective integrated amplifiers. The structure has been designed and numerically studied using a 3D finite element modelling tool, and over 3 dB/cm small signal gain has been predicted for an optimized amplifier. Preliminary characterization of an amplifier structure provides a first experimental evidence of the novel multimode longitudinal pumping.
authors.affiliation: Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. v.donzella@sssup.it
authors.forename: V
authors.initials: V
authors.lastname: Donzella
authors.forename: V
authors.initials: V
authors.lastname: Toccafondo
authors.forename: S
authors.initials: S
authors.lastname: Faralli
authors.forename: F
authors.initials: F
authors.lastname: Di Pasquale
authors.forename: C
authors.initials: C
authors.lastname: Cassagnettes
authors.forename: D
authors.initials: D
authors.lastname: Barbier
authors.forename: H Hernandez
authors.initials: HH
authors.lastname: Figueroa