title: Design considerations for short-wavelength operation of 790-nm-pumped Tm-doped fibers.
abstract: Tm-doped 790-nm-pumped silica fiber lasers are excellent candidates for producing emission at <1.95 microm, but achieving efficient operation at these wavelengths requires careful attention to fiber design because of the characteristic three-level reabsorption effects. We present a discussion of methods for mitigation of these effects and two high-efficiency systems that are capable of producing up to 70 W at <1.92 microm.
authors.affiliation: MQ Photonics Research Centre, Faculty of Science, Macquarie University, North Ryde, NSW 2109, Australia. gfrith@science.mq.edu.au
authors.forename: Gavin
authors.initials: G
authors.lastname: Frith
authors.forename: Adrian
authors.initials: A
authors.lastname: Carter
authors.forename: Bryce
authors.initials: B
authors.lastname: Samson
authors.forename: Graham
authors.initials: G
authors.lastname: Town