title: Mode-locked laser operation of Indium-modified Yb:KY(WO₄)₂ single crystal.
abstract: We report the first pulsed laser operation of an Indium-modified Yb:KY(WO4)2 crystal. Indium incorporation enlarges the broadening of the Yb3+ optical bands, reduces crystal lattice parameters and increases n(p) refractive index. A KY0.8In0.07Yb0.13(WO4)2 crystal pumped at 981 nm with a Ti-sapphire laser in a SESAM modulated resonator produces at 300 K self-starting and stable mode-locking. The shortest laser pulses achieved were centred at λ = 1041.1 nm, have a duration of 96 fs with average power of 134 mW and repetition rate of 103.5 MHz (1.3 nJ/pulse).
authors.forename: Elena
authors.initials: E
authors.lastname: Castellano-Hernández
authors.forename: Xiumei
authors.initials: X
authors.lastname: Han
authors.forename: Mauricio
authors.initials: M
authors.lastname: Rico
authors.forename: Luis
authors.initials: L
authors.lastname: Roso
authors.forename: Concepción
authors.initials: C
authors.lastname: Cascales
authors.forename: Carlos
authors.initials: C
authors.lastname: Zaldo