Kerr-lens mode-locking of an Yb:SALLO laser generating 25 fs pulses at 1090 nm

We report on the generation of sub-30 fs pulses from a Kerr-lens mode-locked ytterbium solid-state laser based on a disordered Yb:SrLaAlO4 (Yb:SALLO) crystal as a gain medium. The Yb:SALLO laser, pumped by a spatially single-mode Yb-fiber laser at 979 nm, produces soliton pulses as short as 25 fs at...

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Bibliographic Details
Published in:Applied physics letters 2024-04, Vol.124 (17)
Main Authors: Lin, Zhang-Lang, Zeng, Huang-Jun, Pan, Zhongben, Loiko, Pavel, Petrov, Valentin, Mateos, Xavier, Zhang, Ge, Chen, Weidong
Format: Article
Language:English
Subjects:
Fiber lasers
Laser applications
Laser mode locking
Lenses
Pulse duration
Pulse repetition rate
Solid state lasers
Solitary waves
Ytterbium
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Summary:We report on the generation of sub-30 fs pulses from a Kerr-lens mode-locked ytterbium solid-state laser based on a disordered Yb:SrLaAlO4 (Yb:SALLO) crystal as a gain medium. The Yb:SALLO laser, pumped by a spatially single-mode Yb-fiber laser at 979 nm, produces soliton pulses as short as 25 fs at 1090 nm, with an average output power of 149 mW at a pulse repetition rate of ∼80.7 MHz. The power scaling potential of the Kerr-lens mode-locked laser is exploited by achieving watt-level (1.54 W) average output power at 1081 nm for a somewhat longer pulse duration of 34 fs. This result corresponds to an impressive laser efficiency of 49.7% and a peak power of 468 kW.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0197152