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Optical Engineering • new

Near-zero dispersion flattened, low-loss porous-core waveguide design for terahertz signal transmission
Author(s): Jakeya Sultana; Md. Saiful Islam; Javid Atai; Muhammad Rakibul Islam; Derek Abbott
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Paper Abstract

We demonstrate a photonic crystal fiber with near-zero flattened dispersion, ultralower effective material loss (EML), and negligible confinement loss for a broad spectrum range. The use of cyclic olefin copolymer Topas with improved core confinement significantly reduces the loss characteristics and the use of higher air filling fraction results in flat dispersion characteristics. The properties such as dispersion, EML, confinement loss, modal effective area, and single-mode operation of the fiber have been investigated using the full-vector finite element method with the perfectly matched layer absorbing boundary conditions. The practical implementation of the proposed fiber is achievable with existing fabrication techniques as only circular-shaped air holes have been used to design the waveguide. Thus, it is expected that the proposed terahertz waveguide can potentially be used for flexible and efficient transmission of terahertz waves.

Paper Details

Date Published: 31 July 2017
PDF: 5 pages
Opt. Eng. 56(7) 076114 doi: 10.1117/1.OE.56.7.076114
Published in: Optical Engineering Volume 56, Issue 7
Show Author Affiliations
Jakeya Sultana, Islamic Univ. of Technology (Bangladesh)
Md. Saiful Islam, The Univ. of Adelaide (Australia)
Javid Atai, The Univ. of Sydney (Australia)
Muhammad Rakibul Islam, Islamic Univ. of Technology (Bangladesh)
Derek Abbott, The Univ. of Adelaide (Australia)


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