Niobium telluride absorber for a mode-locked vector soliton fiber laser

查看全文 作　　者：XinXin [1]Shang;NanNan [1]Xu;Jia [2]Guo;Shuo [3]Sun;HuaNian [3]Zhang;[4]SWageh;Ahmed AAl-[4]Ghamdi;Han [2]Zhang;DengWang [1]Li 机构地区：[1]Shandong Province Key Laboratory of Medical Physics and Image Processing Technology,Shandong Provincial Key Laboratory of Optics and Photonic Device,School of Physics and Electronics,Shandong Normal University,Jinan 250014,China;[2]Institute of Microscale Optoelectronics,Collaborative Innovation Center for Optoelectronic Science&Technology,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province,College of Physics and Optoelectronic Engineering,Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology,Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ),Shenzhen University,Shenzhen 518060,China;[3]School of Physics and Optoelectronic Engineering,Shandong University of Technology,Zibo 255049,China;[4]Department of Physics,Faculty of Science,King Abdulaziz University,Jeddah 21589,Saudi Arabia 出　　处：《Science China(Physics,Mechanics & Astronomy)》索引2023年第66卷第5期,共9页 基　　金：supported by the National Natural Science Foundation of China(Grant Nos.61971271,11904213,and 11747149);the Jinan City-School Integration Development Strategy Project(Grant No.JNSX2021023);the Shandong Province Major Technological Innovation Project(Grant No.2022CXGC010502);the Shandong Province Natural Science Foundation(Grant No.ZR2018QF006);the Key Project of Department of Education of Guangdong Province(Grant No.2018KCXTD026);the Deanship of Scientific Research(DSR)at King Abdulaziz University,Jeddah(Grant No.KEP-MSc-70-130-42);the“Opening Foundation of Shandong Provincial Key Laboratory of Laser Technology and Application”. 摘　　要：Niobium telluride(NbTe_(2)),an emerging transition metal dichalcogenide material,has been theoretically predicted to have nonlinear absorption properties and excellent optical response.However,only a few studies of the utilization of NbTe_(2)in ultrafast photonics have been reported.In this work,a NbTe_(2)-based saturable absorber(SA)was applied in an erbium-doped fiber as a mode-locked device,and a vector soliton based on NbTe_(2)was obtained for the first time.NbTe_(2)-PVA film SA was successfully prepared by the liquid-phase exfoliation and spin coating methods,with a modulation depth of up to 10.87%.The nonlinear absorption coefficient of NbTe_(2)-based SA film tested through the open-aperture Z-scan laser measurement is 0.62×10^(−11) m/W.A conventional soliton with a pulse duration of 858 fs was generated using NbTe_(2)-based SA,which was demonstrated to be a kind of polarization-locked vector soliton in further investigation.Our experimental results reveal the nonlinear optical properties of NbTe_(2)and broaden its applications in ultrafast photonic devices. 关 键 词：niobium telluride saturable absorber mode-locked pulse fiber laser