title: Ultrafast laser inscribed Yb:KGd(WO4)2 and Yb:KY(WO4)2 channel waveguide lasers.
abstract: We demonstrate laser action in diode-pumped microchip monolithic cavity channel waveguides of Yb:KGd(WO(4))(2) and Yb:KY(WO(4))(2) that were fabricated by ultrafast laser writing. The maximum output power achieved was 18.6 mW with a threshold of approximately 100 mW from an Yb:KGd(WO(4))(2) waveguide laser operating at 1023 nm. The propagation losses for this waveguide structure were measured to be 1.9 dBcm(-1).
authors.affiliation: J. F. Allen Physics Research Laboratories, School of Physics and Astronomy, St Andrews, Fife, Scotland KY16 9SS, UK. fmb9@st-andrews.ac.uk
authors.forename: F M
authors.initials: FM
authors.lastname: Bain
authors.forename: A A
authors.initials: AA
authors.lastname: Lagatsky
authors.forename: R R
authors.initials: RR
authors.lastname: Thomson
authors.forename: N D
authors.initials: ND
authors.lastname: Psaila
authors.forename: N V
authors.initials: NV
authors.lastname: Kuleshov
authors.forename: A K
authors.initials: AK
authors.lastname: Kar
authors.forename: W
authors.initials: W
authors.lastname: Sibbett
authors.forename: C T A
authors.initials: CT
authors.lastname: Brown
mesh_terms: D017076:Computer-Aided Design; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State; D008904:Miniaturization; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation