A Photonic crystal fiber with large effective refractive index separation and low dispersion

被引：4

作者：

Geng, Zhihao ^{[1
]}

Wang, Ning ^{[1
]}

Li, Keyao ^{[1
]}

Kang, Hui ^{[1
]}

Xu, Xun ^{[1
]}

Liu, Xing ^{[1
]}

Wang, Weicheng ^{[1
]}

Jia, Hongzhi ^{[1
]}

机构：

[1] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Minist Educ, Engn Res Ctr Opt Instrument & Syst, Shanghai, Peoples R China

来源：

PLOS ONE | 2020年 / 15卷 / 05期

关键词：

ORBITAL ANGULAR-MOMENTUM; GENERATION; BANDWIDTH;

D O I：

10.1371/journal.pone.0232982

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A photonic crystal fiber (PCF) structure with a ring-core and 5 well-ordered semiellipse airholes has been creatively proposed. Through a comparison between the structures with a high refractive index (RI) ring-core and the structure without, it conclude that a PCF with a high RI ring-core can work better. Schott SF57 was elected as the substrate material of ring-core. This paper compares the effects of long-axis and short-axis changes on the PCF and selects the optimal solution. Especially TE0,1 mode's dispersion is maintained between 0 and 3 ps / (nm. km) ranging from 1.45 mu m to 1.65 mu m. This property can be used to generate a supercontinuum with 200 mu m long zero dispersion wavelength (ZDM). In addition, Delta n(eff) reaches up to 10(-3), which enables the near-degeneracy of the eigenmodes to be almost neglected. The proposed PCF structure will have great application value in the field of optical communications.

引用

页数：15

共 37 条

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