Abstract
In this paper, we present the design and analysis of a novel hybrid porous core octagonal lattice photonic crystal fiber for terahertz (THz) wave guidance. The numerical analysis is performed using a full-vector finite element method (FEM) that shows that 80% of bulk absorption material loss of cyclic olefin copolymer (COC), commercially known as TOPAS can be reduced at a core diameter of 350 μm. The obtained effective material loss (EML) is as low as at an operating frequency of 1 THz with a core porosity of 81%. Moreover, the proposed photonic crystal fiber also exhibits comparatively higher core power fraction, lower confinement loss, higher effective mode area, and an ultra-flattened dispersion profile with single mode propagation. This fiber can be readily fabricated using capillary stacking and sol-gel techniques, and it can be used for broadband terahertz applications.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
Md. Shariful Islam, Mohammad Faisal, and S. M. Abdur Razzak
J. Opt. Soc. Am. B 34(8) 1747-1754 (2017)
Jianfeng Luo, Fengjun Tian, Hongkun Qu, Li Li, Jianzhong Zhang, Xinhua Yang, and Libo Yuan
Appl. Opt. 56(24) 6993-7001 (2017)
Md. Rabiul Hasan, Md. Ariful Islam, M. S. Anower, and S. M. A. Razzak
Appl. Opt. 55(30) 8441-8447 (2016)