Low loss and low dispersion hybrid core photonic crystal fiber for terahertz propagation

被引：37
|
作者：
Islam, Md Saiful [1 ]
Sultana, Jakeya [2 ]
Dorraki, Mohsen [1 ]
Atai, Javid [3 ]
Islam, Mohammad Rakibul [2 ]
Dinovitser, Alex [1 ]
Ng, Brian Wai-Him [1 ]
Abbott, Derek [1 ]
机构：
[1] Univ Adelaide, Sch Elect & Elect Engn, Adelaide, SA 5005, Australia
[2] Islamic Univ Technol, Elect & Elect Engn, Gazipur 1704, Bangladesh
[3] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia
来源：
PHOTONIC NETWORK COMMUNICATIONS | 2018年 / 35卷 / 03期
关键词：
Optics; Photonic crystal fiber; Effective material loss; Terahertz; Dispersion; POLYMER OPTICAL-FIBER; SINGLE-MODE FIBER; DIELECTRIC-PROPERTIES; TRANSMISSION;
D O I：
10.1007/s11107-017-0751-7
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a hybrid- core circular cladded photonic crystal fiber is designed and analyzed for application in the terahertz frequency range. We introduce a rectangular structure in addition to a conventional hexagonal structure in the core to reduce the material absorption loss. The modal characteristics of the fiber have been investigated using full vector finite element method. Simulated results exhibit an ultra- low effective material loss of 0.035cm- 1 and ultra- flattened dispersion of 0.07 ps/ THz/ cm. Some other important fiber characteristics suitable for terahertz signal transmission including confinement loss, core power fraction, effective area and single- mode conditions of the fiber have also been investigated. In order to simplify design and facilitate fabrication, only circular shaped air holes have been employed. Due to its promising characteristics, the proposed waveguide may provide efficient transmission of broadband terahertz signals.
引用
收藏
页码：364 / 373
页数：10
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