Abstract
We investigated 1-µm multimode fiber laser based on carbon nanotubes, where multiple typical pulse states were observed, including Q-switched, Q-switched mode-locked, and spatiotemporal mode-locked pulses. Particularly, stable spatiotemporal mode-locking was realized with a low threshold, where the pulse duration was 37 ps and the wavelength was centred at 1060.5 nm. Moreover, both the high signal to noise and long-term operation stability proved the reliability of the mode-locked laser. Furthermore, the evolution of the spatiotemporal mode-locked pulses in the cavity was also simulated and discussed. This work exhibits the flexible outputs of spatiotemporal phenomena in multimode lasers based on nanomaterials, providing more possibilities for the development of high-dimensional nonlinear dynamics.
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This work was supported by the National Natural Science Foundation of China (Grant No. 62071016), the State Key Laboratory of Advanced Optical Communication Systems Networks, China, and the Academic Excellence Foundation of BUAA for PhD Students.
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Sun, J., Wang, Y., Zhang, C. et al. Spatiotemporal nonlinear dynamics in multimode fiber laser based on carbon nanotubes. Front. Phys. 19, 52201 (2024). https://doi.org/10.1007/s11467-024-1399-2
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DOI: https://doi.org/10.1007/s11467-024-1399-2