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Article Dans Une Revue High Power Laser Science and Engineering Année : 2021

Power-scalable sub-100-fs Tm laser at 2.08 μm

Résumé

We report on a power-scalable sub-100-fs laser in the 2-μm spectral range using a Tm$^{3+}$-doped ‘mixed’ (Lu,Sc)$_2$O$_ 3$ sesquioxide ceramic as an active medium. Pulses as short as 58 fs at 2076 nm with an average output power of 114 mW at a pulse repetition rate of approximately 82.9 MHz are generated by employing single-walled carbon nanotubes as a saturable absorber. A higher average power of 350 mW at 2075 nm is obtained at the expense of the pulse duration (65 fs). A maximum average power of 486 mW is achieved for a pulse duration of 98 fs and an optical conversion efficiency of 22.3%, representing the highest value ever reported from sub-100-fs mode-locked Tm lasers.
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hal-03858606 , version 1 (18-11-2022)

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Li Wang, Weidong Chen, Yongguang Zhao, Hanlin Yang, Wei Jing, et al.. Power-scalable sub-100-fs Tm laser at 2.08 μm. High Power Laser Science and Engineering, 2021, 9, pp.e50. ⟨10.1017/hpl.2021.42⟩. ⟨hal-03858606⟩
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