Ultrafast erbium-doped fiber laser using electrodeposition coated MoS 2 thin film as saturable absorber

In this work, we have experimentally demonstrated the ultrafast laser in Erbium-doped fiber laser using MoS 2 as saturable absorber. The MoS 2 SA in this work is prepared by bottom-up method. A three-electrode configuration is used to perform the electrodeposition to coat the MoS 2 onto conductive film. The MoS 2 saturable absorber is incorporated into the fiber laser system to induce mode-locking operation centered at 1560.8 nm. The proposed saturable absorber has achieved pulse width of 1.47 ps, with highest average pulse energy of 0.44 nJ and repetition rate of 1.88 MHz. The venture of electrodeposition coated MoS 2 thin film as saturable absorber is potentially to pave the foundation toward the sustainable industry, innovation and infrastructure.