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arXiv · 2610.13427

Spectral-control-assisted Kerr-lens mode-locking in a Tm:Y2O3 ceramic laser

Zeyu Gong·Jing Wang·Panqiang Kang·Weichao Yao·Yujie Peng·Jun Wang·Dingyuan Tang·Yuxin Leng
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Abstract

We report a soft-aperture Kerr-lens mode-locked Tm:Y2O3 ceramic laser stabilized by suppressing wavelength competition under high population-inversion conditions. The laser delivers an average output power of 0.5 W with a pulse duration of 112 fs at a repetition rate of 90 MHz and a central wavelength of 2.08 um. Further optimization for shorter pulses yields a pulse duration of 107 fs, through with a reduced output power of 0.22 W. These results demonstrate that spectral-control is an effective approach for achieving stable mode-locking in such laser with strong spectral competition.

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Zeyu Gong, Jing Wang, Panqiang Kang, Weichao Yao, Yujie Peng, Jun Wang, Dingyuan Tang, Yuxin Leng. 2026-10-09. Spectral-control-assisted Kerr-lens mode-locking in a Tm:Y2O3 ceramic laser. https://arxiv.org/abs/2610.13427

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