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http://dx.doi.org/10.15207/JKCS.2021.12.2.029

A Study on the Analysis of Electromagnetic Characteristics and Design of a Cylindrical Photonic Crystal Waveguide with a Low-Index Core  

Kim, Jeong I. (Department of Electric, Electronic and Communication Engineering Education, Chungnam National University)
Publication Information
Journal of the Korea Convergence Society / v.12, no.2, 2021 , pp. 29-34 More about this Journal
Abstract
In this paper, a cylindrical photonic crystal waveguide with a low-index core is first proposed. The core can be filled with air, liquid, or arbitrary dielectric materials. Exact analyses for the electromagnetic field characteristics of guided modes, by using appropriate Bessel functions and applying the boundary conditions, are performed to find out the guiding characteristics of the proposed waveguide. For verification and usage in design and manufacturing process, the computer-calculation of the waveguide transmission characteristics is also performed by applying the rigorous full-vectorial finite difference method. Providing variations of the effective area for the fundamental mode of the designed waveguide with different numbers of cladding layers, ranging from 2.6056 ㎛2 to 5.9673 ㎛2 over the operation wavelength, generally as the core refractive index n1 is higher, the mode area becomes smaller and the result leads to more optimistic effect for nonlinear device applications.
Keywords
Photonic band-gap; Low-index core; FDM; Fundamental mode; Optical communications;
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