Open AccessSpectral characteristics of a photonic bandgap fiber
Author(s) -
Alexander Plastun,
A. I. Konyukhov
Publication year - 2018
Publication title -
kompʹûternaâ optika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.491
H-Index - 29
eISSN - 2412-6179
pISSN - 0134-2452
DOI - 10.18287/2412-6179-2018-42-2-236-243
Subject(s) - photonic crystal , photonic crystal fiber , materials science , optics , fiber , total internal reflection , band gap , microstructured optical fiber , reflection (computer programming) , photonics , optoelectronics , yablonovite , graded index fiber , photonic integrated circuit , physics , fiber optic sensor , computer science , composite material , programming language
With the help of numerical simulation, we study the propagation of light in an all-glass photonic crystal fiber. A comparison of the spectral characteristics of a fiber with the idealized hexagonal structure and a fiber with transverse profile deformations is conducted. The calculations use methods based on a spatial Fourier transform. It is shown that total internal reflection modes and the fundamental mode of the photonic bandgap can be excited simultaneously. Structural deformation of a photonic crystal fiber results in the shifting and narrowing of the photonic bandgap. Excitation of the total internal reflection modes leads to increased absorption on the boundaries of the spectral band of the fiber.