Dispersion flattened extremely high-birefringent kagome lattice elliptic core photonic crystal fiber in THz regime

  • Md. Shariful IslamEmail author
  • Mohammad Faisal
  • S. M. Abdur Razzak


A highly birefringent elliptic porous-core photonic crystal fiber with kagome lattice cladding has been presented for terahertz (THz) wave transmission. The slotted airholes inside the elliptic core effectively disrupt the symmetry of the porous-core which offers extremely high modal birefringence whereas the kagome cladding structure results in significantly low effective material loss (EML). The birefringence of the proposed structure is \(9.73\times 10^{-2}\) and the EML is \(0.056\,{\hbox {cm}}^{-1}\) for y-polarized mode at an operating frequency of 1 THz. The suggested structure also provides very flat dispersion over a bandwidth of 300 GHz. It is highly expected that this elliptic core waveguide would be remarkably useful in numerous polarization maintaining THz applications.


Microstructured fibers Fibres, polarization-maintaining Photonic crystal fibers Optical communications Fiber design and fabrication 


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Electrical and Computer EngineeringGeorgia Institute of TechnologyAtlantaUSA
  2. 2.Department of Electrical and Electronic EngineeringBangladesh University of Engineering and TechnologyDhakaBangladesh
  3. 3.Department of Electrical and Electronic EngineeringRajshahi University of Engineering and TechnologyRajshahiBangladesh

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