Understanding the material loss of anti-resonant hollow-core fibers

被引：29

作者：

Wu, Dakun ^{[1
,2
]}

Yu, Fei ^{[1
,3
]}

Liao, Meisong ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 08期

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

NEGATIVE CURVATURE; SILICA HOLLOW; SINGLE-RING; ATTENUATION; MODEL;

D O I：

10.1364/OE.380847

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, the material loss of anti-resonant hollow-core fiber (AR-HCF) and its properties are studied. We revisit the formula of power attenuation coefficient for the index-guiding optical fiber described by Snyder and Love in the 1980s and derive the modal overlap factor that governs the material loss of hollow-core fibers (HCF). The modal overlap factor formula predicts the material loss of AR-HCF, which agrees with numerical simulations by the finite element method. The optimization of silica-based AR-HCF design for the lowest loss at 4 mu m wavelength is numerically discussed where the silica absorption reaches over 800 dB/m. Our work would provide practical guidance to develop low-loss AR-HCF at highly absorptive wavelengths, e.g. in the vacuum UV and mid/far-infrared spectral regions. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：11840 / 11851

页数：12

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