Open AccessIon-exchanged Er^3+/Yb^3+ co-doped waveguide amplifiers longitudinally pumped by broad area lasers
Author(s) -
Valentina Donzella,
V. Toccafondo,
S. Faralli,
F. Di Pasquale,
C. Cassagnettes,
D. Barbier,
Hugo E. Hernandez-Figueroa
Publication year - 2010
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.012690
Subject(s) - materials science , amplifier , laser , optics , optical amplifier , phosphate glass , optoelectronics , multi mode optical fiber , waveguide , doping , physics , optical fiber , cmos
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.