Abstract
We report the nonlinear pulse compression of a high-power, thulium-doped fiber laser system using a gas-filled hollow-core fiber. The sub-two cycle source delivers 1.3 mJ pulse energy with 80 GW peak power at a central wavelength of 1.87 μm and an average power of 132 W. This is, so far, to the best of our knowledge, the highest average power of a few-cycle laser source reported in the short-wave infrared region. Given its unique combination of high pulse energy and high average power, this laser source is an excellent driver for nonlinear frequency conversion, toward terahertz, mid-infrared, and soft X-ray spectral regions.
Original language | English |
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Pages (from-to) | 2647-2650 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 48 |
Issue number | 10 |
Early online date | 9 May 2023 |
DOIs | |
Publication status | Published - 15 May 2023 |