Chinese Optics Letters, 2018, 16 (2): 020012, Published Online: Jul. 16, 2018
Graphene/MoS2 heterostructure: a robust mid-infrared optical modulator for Er3+-doped ZBLAN fiber laser
Abstract
We have prepared the graphene / MoS 2 heterostructure by a hydrothermal method, and presented its nonlinear absorption parameters and application as a nonlinear optical modulator in the mid-infrared region. Using the nonlinear optical modulator, stable passively Q -switched operation of an Er 3 + -doped ZrF 4 - BaF 2 - LaF 3 - AlF 3 - NaF (ZBLAN) fiber laser at ~ 2.8 μ m can be obtained. The Q -switched Er 3 + -doped ZBLAN fiber laser can yield per-pulse energy up to 2.2 μJ with the corresponding pulse width and pulse repetition rate of 1.9 μs and 45 kHz, respectively. Our results indicate that the graphene / MoS 2 heterostructure can be a robust optical modulator for pulsed lasers in the mid-infrared spectral range.
Pinghua Tang, Yue Tao, Yuliang Mao, Man Wu, Zongyu Huang, Shengnan Liang, Xinhang Chen, Xiang Qi, Bin Huang, Jun Liu, Chujun Zhao. Graphene/MoS2 heterostructure: a robust mid-infrared optical modulator for Er3+-doped ZBLAN fiber laser[J]. Chinese Optics Letters, 2018, 16(2): 020012.