Hybrid porous-core microstructure terahertz fibre with ultra-low bending loss and low effective material loss
- Author(s): Md. Rabiul Hasan 1 ; Sanjida Akter 1, 2 ; Sohel Rana 2 ; Sharafat Ali 3
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View affiliations
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Affiliations:
1:
Department of Electronics & Telecommunication Engineering , Rajshahi University of Engineering & Technology , Rajshahi 6204 , Bangladesh ;
2: Department of Electrical & Electronic Engineering , Rajshahi University of Engineering & Technology , Rajshahi 6204 , Bangladesh ;
3: School of Computer and Communication Engineering , Center of Excellence, Advanced Communication Engineering Cluster , Pauh Putra Campus, Arau 02600, Perlis , Malaysia
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Affiliations:
1:
Department of Electronics & Telecommunication Engineering , Rajshahi University of Engineering & Technology , Rajshahi 6204 , Bangladesh ;
- Source:
Volume 12, Issue 1,
05
January
2018,
p.
109 – 113
DOI: 10.1049/iet-com.2016.1306 , Print ISSN 1751-8628, Online ISSN 1751-8636
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A hybrid porous-core microstructure optical fibre (MOF) is proposed and its guiding properties are characterised for efficient terahertz wave guiding. A numerical investigation using the finite element method showed that a hybrid-core MOF consisted of a diamond-shaped cell and the circular arrangement of air holes exhibited an extremely low-bending loss of 5.24 × 10−13 cm−1 for a bending radius of 1 cm and an operating frequency of 1.0 THz. The proposed fibre also showed a low effective material loss of 0.08 cm−1 at an optimised core porosity of 52%. Moreover, single mode propagation, dispersion and fabrication feasibility of the proposed MOF are discussed. Due to the excellent guiding properties, this MOF can be potentially used in THz imaging, sensing and flexible communication applications.
Inspec keywords: optical fibre dispersion; micro-optics; finite element analysis; optical fibre losses; optical fibre fabrication; porosity
Other keywords: MOF; optimised core porosity; single mode propagation; sensing applications; flexible communication applications; ultralow bending loss; efficient terahertz wave guiding; THz imaging; radius 1 cm; low effective material loss; fabrication feasibility; frequency 1.0 THz; finite element method; diamond-shaped cell; fiber dispersion; hybrid porous-core microstructure terahertz fibre; air holes
Subjects: Fibre optics; Optical propagation, dispersion and attenuation in fibres; Micro-optical devices and technology; Optical fibre fabrication, cladding, splicing, joining; Micro-optical devices and technology
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