title: Optically pumped semiconductor quantum dot disk laser operating at 1180 nm.
abstract: We demonstrate an optically pumped semiconductor disk laser using 39 layers of Stranski-Krastanov InGaAs quantum dots self-assembled during epitaxial growth on a monolithic GaAs/AlAs distributed Bragg reflector. The gain structure bonded to an intracavity diamond crystal heat spreader allows 1.75 W single-transverse-mode output (M(2)<1.2) with circular beam shape operating at 1180 nm in a disk laser geometry.
authors.affiliation: Optoelectronics Research Centre, Tampere University of Technology, Korkeakoulunkatu 3, 33720 Tampere, Finland. jussi.rautiainen@tut.fi
authors.forename: Jussi
authors.initials: J
authors.lastname: Rautiainen
authors.forename: Igor
authors.initials: I
authors.lastname: Krestnikov
authors.forename: Mantas
authors.initials: M
authors.lastname: Butkus
authors.forename: Edik U
authors.initials: EU
authors.lastname: Rafailov
authors.forename: Oleg G
authors.initials: OG
authors.lastname: Okhotnikov