Ultraflat-top midinfrared coherent broadband supercontinuum using all normal As2S5-borosilicate hybrid photonic crystal fiber

Ben Salem Amine; Diouf Mbaye; Cherif RimWague AhmadouZghal Mourad

首页> 外文期刊>Optical Engineering >Ultraflat-top midinfrared coherent broadband supercontinuum using all normal As2S5-borosilicate hybrid photonic crystal fiber

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Ultraflat-top midinfrared coherent broadband supercontinuum using all normal As2S5-borosilicate hybrid photonic crystal fiber

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We report more than two octave spanning mid-IR flat-top supercontinuum (SC) generation using all normal As2S5-borosilicate hybrid photonic crystal fiber. Our design is based on a chalcogenide As2S5 photonic crystal fiber (PCF), where the first ring composed of six air holes is made by borosilicate glass. By injecting 50-fs pulses with 1.6 nJ energy at 2.5 mu m in the all normal dispersion (ANDi) regime, a flat-top broadband SC extending from 1 to 5 mu m with high-spectral flatness of 8 dB is obtained in only 4-mm fiber length. To the best of our knowledge, we present the broadest flat mid-IR spectrum generated in the ANDi regime of an optical fiber. The self-phase modulation and the optical wave breaking are identified as the main broadening mechanisms. The obtained broadband light source can be potentially used in the field of spectroscopy and in high-resolution optical coherent tomography owing to the high-spectral SC flatness generated by our designed fiber. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE).

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来源
《Optical Engineering》 |2016年第6期|066109-1-066109-7|共7页
作者
Ben Salem Amine; Diouf Mbaye; Cherif RimWague AhmadouZghal Mourad;
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作者单位

Univ Carthage, Engn Sch Commun Tunis SupCom, GRESCOM Lab, Technopk, Ariana 2083, Tunisia;

Univ Cheikh Anta Diop, Dept Phys, Lab Atome Laser, POB 5005, Dakar, Senegal;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;光学仪器;
关键词
ultrashort pulse propagation; supercontinuum generation; hybrid structures; all normal dispersion; mid-IR sources;

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Ultraflat-top midinfrared coherent broadband supercontinuum using all normal As2S5-borosilicate hybrid photonic crystal fiber

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