Abstract
In addition to the artificial saturable absorber (SA) like the nonlinear polarization rotation (NPR) [1], the investigation of peculiar soliton dynamics from passive mode-locked fiber laser (PML-FL) can be produced based on the semiconductor saturable absorber mirror (SESAM) and various nanomaterials, like the carbon nanotube (CNT), graphene, graphene oxide (GO), topological insulator (Bi2Se3) with lower mode-locked threshold [2, 3]. In comparison with other SAs, GO reveals various advantages including relative widely operation bandwidth, easy fabrication, low saturation intensity, ultrashort recovery time. For specific application, the wavelength tuning of PML-FL is required but is limited for the SESAM or CN. Recently, the wavelength tuning of mode-locked Er-doped fiber laser (EDFL) around 1570-1600 nm has been demonstrated based on graphene because of its relative wide absorption range [4]. In this work, we demonstrated the fine tuning of emission peak wavelength of EDFL based on the GO/PVA film.
© 2019 IEEE
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