A photonic crystal fiber for supporting 30 orbital angular momentum modes with low dispersion

被引：18
作者：
Huang, Wei [1 ]
You, Yong [1 ,2 ]
Song, Bin-bin [1 ]
Chen, Sheng-yong [1 ]
机构：
[1] Tianjin Univ Technol, Key Lab Comp Vis & Syst, Minist Educ, Sch Comp Sci & Engn, Tianjin 300384, Peoples R China
[2] Nankai Univ, Inst Modern Opt, Tianjin 300350, Peoples R China
来源：
OPTOELECTRONICS LETTERS | 2020年 / 16卷 / 01期
基金：
中国国家自然科学基金;
关键词：
TRANSMISSION;
D O I：
10.1007/s11801-020-9072-7
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper proposes a novel photonic crystal optical fiber which can support 30 orbital angular momentum (OAM) modes transmission and possesses relatively flat and low dispersion. The OAM modes can be well-separated due to the large effective refractive index difference (above 10(-4) ) between the eigenmodes. The only material of the designed fiber is silica. The dispersion of each OAM mode is controlled in the range of 50-100 ps center dot nm(-1)center dot km(-1) and the total dispersion variation is below 10 ps center dot nm(-1)center dot km(-1) from 1 500 nm to 1 600 nm. Moreover, the confinement loss of each OAM mode is below 8.17x10(-10) dB/m at 1 550 nm, and the nonlinear coefficients is less than 0.71 W-1 /km for all modes at 1 550 nm. With all these good features, this proposed optical fiber is promising to be applied in fiber-based OAM communication systems.
引用
收藏
页码：34 / 39
页数：6
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