Open AccessEffect of coupling between fundamental and cladding modes on bending losses in photonic crystal fibers
Author(s) -
J. Olszewski,
M. Szpulak,
Wacław Urbańczyk
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.006015
Subject(s) - cladding (metalworking) , materials science , optics , photonic crystal fiber , bend radius , bending , total internal reflection , photonic crystal , wavelength , optoelectronics , composite material , physics
The paper presents a fully vectorial analysis of bending losses in photonic crystal fibers employing edge/nodal hybrid elements and perfectly matched layers boundary conditions. The oscillatory character of losses vs. both the wavelength and the bending radius has been demonstrated. The shown oscillations originate from the coupling between the fundamental mode guided in the core and the gallery of cladding modes arising due to light reflection from the boundary between solid and holey part of the cladding.