Qiang Yu, Kun Guo, Jie Chen, Tao Wang, Jin Wang, Xin-Yao Shi, Jian Wu, Kai Zhang, Pu Zhou. Dual-wavelength self-starting mode-locking Er-doped fiber laser with MnPS3 saturable absorber [J]. Acta Physica Sinica, 2020, 69(18): 184208-1
- Acta Physica Sinica
- Vol. 69, Issue 18, 184208-1 (2020)
Fig. 1. Characteristics of MnPS3 crystals: (a) Chemical vapor transport method; (b) picture of MnPS3; (c) Raman spectrum for MnPS3
Fig. 2. SEM characteristics of MnPS3 -SA: (a) SEM image of a randomly selected MnPS3 flake, and elemental analysis of this sample; (b)−(d) EDX element mappings for Mn, P, and S.
Fig. 3. TEM characterization of MnPS3 nanosheets: (a) TEM image of a MnPS3 nanosheet on a copper grid; (b) the HRTEM image of the MnPS3 nanosheet; (c) the corresponding SAED showing its single crystal nature.
Fig. 4. Experimental setup of the erbium-doped fiber laser.
Fig. 5. Performances of the pulse fiber laser based on MnPS3-SA: (a) The output power versus the pump power; (b) output optical spectrum; (c) the pulse trace; (d) the duration of single pulse; (e) the radio frequency spectrum from 0−10 MHz; (f) the radio frequency spectrum with ～64 dB (inset).
Fig. 6. Performances of the pulse fiber laser based on MnPS3-SA with the pump power at 70, 120, 170, 220, and 270 mW pump power: (a) Spectrum; (b) wavelength; (c) frequency.
Fig. 7. Output spectrum of the EDFL based on MnPS3-SA: (a) Output spectrum recorded on 1st, 7th, 8th, 11th, 12th day; (b) wavelength peak position; (c) output power.
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