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Mode-locked laser operation of Indium-modified Yb:KY(WO_4)_2 single crystal
Author(s) -
Elena CastellanoHernández,
Xiumei Han,
M. Rico,
L. Roso,
C. Cascales,
C. Zaldo
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.011135
Subject(s) - materials science , laser , optics , indium , sapphire , resonator , pulse duration , optoelectronics , crystal (programming language) , refractive index , physics , computer science , programming language
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).

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