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

作     者：KANGDI NIU RuYI SUN QINGYUN CHEN BAOYUAN MAN AND HUANIAN ZHANG 

作者机构：Shandong Provincial Key Laboratory of Optics and Photonic Devices School of Physics and Electronics Shandong Normal University Jinan 250014 China Institute of Data Science and Technology Shandong Normal University Jinan 250014 China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2018年第6卷第2期

页      面：72-76页

核心收录：

学科分类：0808[工学-电气工程] 080802[工学-电力系统及其自动化] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China(NSFC)(11474187,61205174,61475089) China Postdoctoral Science Foundation(2016M602177) Natural Science Foundation of Shandong Province,China(ZR2014FM028,ZR2016FP01) 

主　　题：金属二卤代物 吸附特性 脉冲宽度 通讯技术 

摘      要：In this paper, tin disulfide(SnS_2), 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. SnS_2-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 SnS_2 nanosheets will have wide potential ultrafast photonic applications due to their suitable bandgap value and excellent nonlinear saturable absorption characteristics.