title: High power ytterbium-doped rod-type three-level photonic crystal fiber laser.
abstract: In this paper, we investigate power scalability of ytterbium-doped ultra large core photonic crystal fiber laser operating on the zero-line transition. We first report on an 80 microm core diameter ytterbium-doped rod-type photonic crystal fiber laser emitting up to 94 W in continuous wave regime when operating at 977 nm, which is to our knowledge the highest output power ever achieved from a single-mode solid-state laser operating at this wavelength. Key parameters of ytterbium-doped three-level laser, such as transparency pump intensity, pump absorption saturation, and gain competition between three and four-level laser operation are then discussed in the particular context of high power fiber laser operating at 977 nm.
authors.affiliation: boullet@celia.u-bordeaux1.fr
authors.forename: Johan
authors.initials: J
authors.lastname: Boullet
authors.forename: Yoann
authors.initials: Y
authors.lastname: Zaouter
authors.forename: Rudy
authors.initials: R
authors.lastname: Desmarchelier
authors.forename: Matthieu
authors.initials: M
authors.lastname: Cazaux
authors.forename: François
authors.initials: F
authors.lastname: Salin
authors.forename: Julien
authors.initials: J
authors.lastname: Saby
authors.forename: Ramatou
authors.initials: R
authors.lastname: Bello-Doua
authors.forename: Eric
authors.initials: E
authors.lastname: Cormier