超连续谱
光学
光纤激光器
超短脉冲
超细纤维
材料科学
宽带
激光器
纤维
物理
光电子学
光纤
光子晶体光纤
复合材料
作者
Yuhang Li,Yi Kang,Xin Guo,Limin Tong
出处
期刊:Optics Letters
[The Optical Society]
日期:2020-03-13
卷期号:45 (6): 1583-1583
被引量:9
摘要
We demonstrated that ultrabroadband noise-like pulses (NLPs) spanning from below 1600 nm to beyond 2300 nm can be generated in Tm-doped fiber lasers enabled by an optical microfiber. Meanwhile, pronounced red light around 660 nm was also observed, which was attributed to the intracavity third harmonic generation (THG) of ultrashort pulses by harnessing the intermodal phase matching in the optical microfiber. As far as we know, it is the first time to simultaneously observe the ultrabroadband NLPs and the intracavity THG in ultrafast fiber lasers, and it is anticipated that these ultrabroadband NLPs can be adopted as a compact broadband source for optical spectroscopy around 2 µm and a wonderful potential seed for supercontinuum generation in the mid-infrared. Moreover, the THG of the intracavity high peak power NLPs in ultrafast fiber lasers provides a new kind of fiber-format visible light source.
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