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. 2025 Aug 25;33(17):36551-36556.
doi: 10.1364/OE.573045.

41-fs diode-pump Kerr-lens mode-locked Yb,Y:CaF2-SrF2 laser

Lulu Dong, Yankai Cheng, Yicheng Jin, Yichen Liu, Zhen Zhang, Fengkai Ma, Junting Liu, Shande Liu, Liangbi Su
Free article

41-fs diode-pump Kerr-lens mode-locked Yb,Y:CaF2-SrF2 laser

Lulu Dong et al. Opt Express. .
Free article

Abstract

We report on a diode-pumped Kerr-lens mode-locked Yb,Y:CaF2-SrF2 laser. Using soft aperture Kerr-lens mode locking, pulses as short as 41 fs were achieved at a center wavelength of 1053.9 nm with a pulse repetition rate of 97.43 MHz. The average output power amounts to 40 mW at an absorbed pump power of 397 mW, corresponding to a peak power of 8.81 kW. This is, to the best of our knowledge, the first KLM Yb,Y:CaF2-SrF2 laser. The results indicate the potential of Yb,Y:CaF2-SrF2 crystals for pulse shortening via KLM technique.

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