复合二维材料GO-MoS<sub>2</sub>锁模掺铒光纤激光器

李维炜; 黄义忠; 罗正钱

doi:doi:10.12086/oee.2018.170653

光电工程, 2018, 45 (10): 170653, 网络出版: 2018-12-18

复合二维材料GO-MoS₂锁模掺铒光纤激光器

Composite two-dimensional material GO-MoS₂-based passively mode-locked Erbium-doped fiber laser

论文大纲

李维炜 ^*黄义忠罗正钱

作者单位

厦门大学电子科学与技术学院电子工程系，福建厦门 361005

被动锁模光纤激光器复合二维材料 passive mode-locking fiber laser composite two-dimensional material GO-MoS₂ GO-MoS₂

摘要

为了提升MoS₂可饱和吸收体在脉冲激光器中的稳定性和工作性能，本论文采用氧化石墨烯(GO)作为胶体表面活性剂，通过LPE 的方法剥离出少层MoS₂，并进一步开展了少层GO-MoS₂用于掺铒光纤激光器(EDFL)锁模的实验研究。在实验中获得了中心波长为1558 nm，重复频率为7.86 MHz，脉宽为1.9 ps 的稳定锁模脉冲激光。当泵浦功率为60.5 mW 时，输出功率为0.48 mW，脉冲峰值功率为32.1 W。研究证明，采用这种方法制备的新型复合二维材料有利于保持少层MoS₂的稳定性，并且能提高MoS₂可饱和吸收体的损伤阈值，以获取更大脉冲能量的超快激光。

Abstract

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.

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李维炜, 黄义忠, 罗正钱. 复合二维材料GO-MoS₂锁模掺铒光纤激光器[J]. 光电工程, 2018, 45(10): 170653. 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.

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