Lasers, Fiber Optics, and Communications

Single-mode porous fiber for low-loss polarization maintaining terahertz transmission

[+] Author Affiliations
Sohel Rana, Raonaqul Islam

Rajshahi University of Engineering and Technology, Department of Electrical and Electronic Engineering, P.O. Box 6204, Rajshahi, Bangladesh

Md. Saiful Islam

Islamic University of Technology, Department of Electrical and Electronic Engineering, P.O. Box 1704, Gazipur, Bangladesh

Mohammad Faisal

Bangladesh University of Engineering and Technology, Department of Electrical and Electronic Engineering, P.O. Box 1000, Dhaka, Bangladesh

Krishna Chandra Roy

Bangladesh University of Engineering and Technology, Institute of Information and Communication Technology, P. O. Box 447, Arusha, Bangladesh

Shubi F. Kaijage

Nelson Mandela African Institution of Science and Technology, Department of Communication Science and Engineering, School of Computational and Communication Science and Engineering, Arusha 23311, Tanzania

Opt. Eng. 55(7), 076114 (Jul 25, 2016). doi:10.1117/1.OE.55.7.076114
History: Received May 2, 2016; Accepted July 6, 2016
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Abstract.  We report on a polymer-based porous-core photonic crystal fiber for simultaneous high-birefringent and low-loss propagation of narrowband terahertz (THz) electromagnetic waves. The high birefringence is induced by using rotated elliptical air holes inside the porous-core. The fiber is numerically analyzed with an efficient finite-element method. The simulation results exhibit an extremely high birefringence of 0.042 and a very low effective material loss of 0.07  cm1 at an operating frequency of 1 THz. Moreover, we have found an optimal rotation angle(θ)=n30  deg (n is an odd integer). Other modal features of the fiber, such as confinement loss, power fraction, effective area, bending loss, and dispersion, also have been analyzed. We anticipate that the proposed fiber would be suitable in polarization maintaining THz wave guidance applications.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Sohel Rana ; Md. Saiful Islam ; Mohammad Faisal ; Krishna Chandra Roy ; Raonaqul Islam, et al.
"Single-mode porous fiber for low-loss polarization maintaining terahertz transmission", Opt. Eng. 55(7), 076114 (Jul 25, 2016). ; http://dx.doi.org/10.1117/1.OE.55.7.076114


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