Photonics Research, 2018, 6 (2): 02000072, Published Online: Jul. 10, 2018  

Passively mode-locked Er-doped fiber laser based on SnS2 nanosheets as a saturable absorber

Author Affiliations
1 Shandong Provincial Key Laboratory of Optics and Photonic Devices, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
2 Institute of Data Science and Technology, Shandong Normal University, Jinan 250014, China
Abstract
In this paper, tin disulfide (SnS2), a two-dimensional (2D) n-type direct bandgap layered metal dichalcogenide with a gap value of 2.24 eV, was employed as a saturable absorber. Its appearance and nonlinear saturable absorption characteristics were also investigated experimentally. SnS2-PVA (polyvinyl alcohol) film was successfully prepared and employed as a mode-locker for achieving a mode-locked Er-doped fiber laser with a pulse width of 623 fs at a pulse repetition rate of 29.33 MHz. The results prove that SnS2 nanosheets will have wide potential ultrafast photonic applications due to their suitable bandgap value and excellent nonlinear saturable absorption characteristics.

Kangdi Niu, Ruyi Sun, Qingyun Chen, Baoyuan Man, Huanian Zhang. Passively mode-locked Er-doped fiber laser based on SnS2 nanosheets as a saturable absorber[J]. Photonics Research, 2018, 6(2): 02000072.

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