Abstract
We reported an acousto-optic mode-locked Tm:LuAG laser pumped by a 786 nm laser diode and realized continuous-wave mode-locked operation. At the pump power of 8.2 W, the output average power was 335 mW with the wavelength of 2023.2 nm. The pulse width was 240 ps at the pulse repetition frequency of 81.60 MHz, and the beam quality factor M2 was 1.04. The output wavelength was tuned from 2022.6 to 2025.3 nm, corresponding to the output average power of 310 to 353 mW. In addition, the self-mode-locking phenomenon was found.
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Acknowledgements
The reported study was funded by National Natural Science Foundation of China (Nos. 51572053, 61378029 and 61775053); Science Fund for Outstanding Youths of Heilongjiang Province (JQ201310), and Fundamental Research funds for the Central Universities (Grant Nos. HIT.NSRIF.2014044, and 2015042), and Fundamental Research funds for the Provincial Universities (Grant No. WL17B14).
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Chen, Y., Wang, R., Yao, B. et al. Acousto-optic mode-locked Tm:LuAG laser with nearly diffraction-limited beam. Opt Quant Electron 51, 353 (2019). https://doi.org/10.1007/s11082-019-2069-4
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DOI: https://doi.org/10.1007/s11082-019-2069-4