Ultrabroadband and coherent mid-infrared supercontinuum generation in Te-based chalcogenide tapered fiber with all-normal dispersion

被引：48
|
作者：
Zhang, Nan [1 ,2 ]
Peng, Xuefeng [1 ,2 ]
Wang, Yingying [3 ]
Dai, Shixun [1 ,2 ]
Yuan, Yuan [1 ,2 ]
Su, Jingxiang [1 ,2 ]
Li, Guangtao [1 ,2 ]
Zhang, Peiqing [1 ,2 ]
Yang, Peilong [1 ,2 ]
Wang, Xunsi [1 ,2 ]
机构：
[1] Ningbo Univ, Res Inst Adv Technol, Lab Infrared Mat & Devices, Ningbo 315211, Zhejiang, Peoples R China
[2] Key Lab Photoelect Mat & Devices Zhejiang Prov, Ningbo 315211, Zhejiang, Peoples R China
[3] Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China
来源：
OPTICS EXPRESS | 2019年 / 27卷 / 07期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
PHOTONIC CRYSTAL FIBER; BROAD-BAND; MU-M; MICROSTRUCTURED FIBERS; GLASS-FIBER; LIMITS;
D O I：
10.1364/OE.27.010311
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrated an ultrabroadband supercontinuum (SC) generation with high coherence property in all-normal-dispersion (ANDi) Te-based chalcogenide tapered fiber. The fibers made of Ge20As20Se15Te45 core and Ge20As20Se20Te40 cladding glasses were fabricated via isolated stacked extrusion. The waist diameter and length can be accurately controlled by a homemade tapering platform. When the core diameter of the waist was <= 14 mu m, the fiber showed an ANDi characteristic in the wavelength range of 1.7-14 mu m. A coherent SC generation covered 1.7-12.7 mu m was generated in a 7-cm-long tapered fiber, pumped at 5.5 mu m. To the best of our knowledge, this is the first SC experimental demonstration in Te-based step-index tapered fiber and the broadest SC generation in chalcogenide tapered fiber when pumped in the normal dispersion regime so far. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：10311 / 10319
页数：9
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