In this paper, for improving the performance and stability of MoS2 saturable absorber, graphene oxide (GO) as colloidal surfactant is used to exfoliate MoS2 bulk material for obtaining few-layer GO-MoS2 nano-flakes. Further research on few-layer GO-MoS2 saturable absorber to mode-lock erbium-doped fiber laser (EDFL) is then conducted. In the experiment, a stable mode-locked pulsed laser is achieved with a center wavelength of 1558 nm, a repetition rate of 7.86 MHz and a pulse width of 1.9 ps. When the pump power reaches 60.5 mW, the output power is 0.48 mW and the pulse peak power is calculated to be 32.1 W. This work shows that the new composite 2D material prepared by this method is beneficial to maintain the stability of few-layer MoS2 and increase the damage threshold of the MoS2 saturable absorber for passive mode-locking.
Composite two-dimensional material GO-MoS2-based passively mode-locked Erbium-doped fiber laser
First published at:Oct 12, 2018
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National Natural Science Foundation of China (61475129), Natural Science Foundation of Fujian Province of China (2017J06016), and Shenzhen Science and Technology Projects (JCYJ20160414160109018)
Get Citation: Li Weiwei, Huang Yizhong, Luo Zhengqian. Composite two-dimensional material GO-MoS2-based passively mode-locked Erbium-doped fiber laser[J]. Opto-Electronic Engineering, 2018, 45(10): 170653.