Mid-infrared mode-locked pulse generation with multilayer black phosphorus as saturable absorber
2015; Optica Publishing Group; Volume: 41; Issue: 1 Linguagem: Inglês
10.1364/ol.41.000056
ISSN1539-4794
AutoresZhipeng Qin, Guoqiang Xie, Chujun Zhao, Shuangchun Wen, Peng Yuan, Liejia Qian,
Tópico(s)Photonic Crystal and Fiber Optics
ResumoA mid-infrared saturable absorber mirror is successfully fabricated by transferring the mechanically exfoliated black phosphorus onto the gold-coated mirror. With the as-prepared black phosphorus saturable absorber mirror, a continuous-wave passively mode-locked Er:ZBLAN fiber laser is demonstrated at the wavelength of 2.8 μm, which delivers a maximum average output power of 613 mW, a repetition rate of 24 MHz, and a pulse duration of 42 ps. To the best of our knowledge, this is the first time a black phosphorus mode-locked laser at 2.8 μm wavelength has been demonstrated. Our results demonstrate the feasibility of black phosphorus flake as a new two-dimensional material for application in mid-infrared ultrafast photonics.
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