Dual-wavelength rectangular pulse erbium-doped fiber laser based on topological insulator saturable absorber

• DOI: 10.1364/prj.3.000094
• Publication Date: 2015-04-16T20:28:56Z
• Authors: Bo Guo; Yong Yao; Yan-Fu Yang; Yi-Jun Yuan; Lei Jin; Bo Yan; Jian-Yu Zhang
• Keywords: Saturable absorption

We reported on the generation of dual-wavelength rectangular pulse in an erbium-doped fiber laser (EDFL) with a topological insulator saturable absorber. The could be stably initiated width from 13.62 to 25.16 ns and fundamental repetition rate 3.54 MHz by properly adjusting pump power polarization state. In addition, we verified that shape can affected total net cavity dispersion laser. Furthermore, rotating controllers, harmonic mode-locking operation was also obtained. EDFL would benefit some potential applications, such as spectroscopy, biomedicine, sensing research.