All fiber mode-locked Erbium-doped fiber laser using single-walled carbon nanotubes embedded into polyvinyl alcohol film as saturable absorber

摘要

We experimentally demonstrate an all-fiber mode-locked Erbium-doped fiber laser (EDFL) using single walled carbon nanotubes (SWCNTs), which is embedded into polyvinyl alcohol (PVA) as a saturable absorber. The laser generates a self-starting dissipative soliton pulse, which operates in 1533.6 nm region without any additional spectral filter as a 980 nm pump power is increased above the threshold value of 35.2 mW, respectively. The output solitons have a pulse duration of 1.8 ps with a repetition rate of 15.3 MHz. At pump power of 71.0 mW,the pulse energy and peak power are approximately 0.28 nl and 148 W.