Title :
Modes in Air-core Bragg Fibers
Author :
Chun-Lai, Xiao ; Li, Yang
Author_Institution :
Univ. of Sci. & Technol. of China, Hefei
Abstract :
The modes supported in air-core Bragg fibers are modeled and simulated by using a full-vectorial 1-Dimensional finite-difference frequency-domain method (FDFD). A perfectly matched layer (PML) terminated by a zero boundary condition is applied as numerical absorption boundary condition such that with proper PML parameters, three types of modes are well defined and divided into branches in the mode spectrum. The three types of modes can be identified as quasi-guided modes, mainly depending on Bragg fiber properties; leaky modes, having tricky relationship with the parameters of both Bragg fiber and PML; and PML modes, mainly depending on the parameters of PML.
Keywords :
finite difference methods; frequency-domain analysis; holey fibres; optical fibre losses; Bragg fiber properties; air-core bragg fiber; fiber modes; finite-difference frequency-domain method; leaky modes; numerical absorption boundary condition; perfectly matched layer; quasiguided modes; Absorption; Boundary conditions; Finite difference methods; Optical fiber devices; Optical fiber polarization; Optical refraction; Optical waveguides; Perfectly matched layers; Photonic crystals; Transmission line matrix methods;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on
Conference_Location :
Builin
Print_ISBN :
1-4244-1049-5
Electronic_ISBN :
1-4244-1049-5
DOI :
10.1109/ICMMT.2007.381369
