饱和吸收
偏振控制器
材料科学
光纤激光器
激光器
光电子学
石墨烯
光学
镱
波长
模式锁定
双折射
保偏光纤
兴奋剂
纤维
光纤传感器
纳米技术
物理
复合材料
作者
Xuanxuan Ma,Baole Lu,Xinyuan Qi,Chunhui Lu,Diao Li,Zengrun Wen,Xinlong Xu,Jintao Bai
标识
DOI:10.7567/1882-0786/ab4b7b
摘要
We report a single- and dual-wavelength switchable mode-locked dissipative soliton in an ytterbium-doped fiber laser based on graphene/WS2 nanocomposites saturable absorber. The graphene/WS2 nanocomposites film possesses efficient saturable absorption characteristics with large modulation depth (45.1%), which results in the stable single-wavelength mode-locking operation with pulse duration of 450 ps. By carefully rotating the polarization controller, the mode-locking operation can be switched to a dual-wavelength at both 1066.4 nm and 1069.2 nm due to the modulation of the intracavity birefringence. Our work extends the studies for 2D nanomaterials and supplies potential applications in the multi-wavelength fiber laser.
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