Title :
Numerical verification of degeneracy in hexagonal photonic crystal fibers
Author :
Koshiba, Masanori ; Saitoh, Kunimasa
Author_Institution :
Div. of Electron. & Inf. Eng., Hokkaido Univ., Sapporo, Japan
Abstract :
Modal birefringences in photonic crystal fibers with six air holes symmetrically arranged around the core region and with multiple air holes in a hexagonal lattice are numerically investigated in detail. It is confirmed from the computed results obtained by a full-vector finite element method that both the hexagonal holey fibers are not birefringent, namely, the two fundamental modes are degenerate.
Keywords :
birefringence; finite element analysis; numerical analysis; optical fibre cladding; optical fibre theory; photonic band gap; air holes; computed results; core region; degeneracy; degenerate fundamental modes; full-vector finite element method; fundamental modes; hexagonal holey fibers; hexagonal lattice; hexagonal photonic crystal fibers; modal birefringences; multiple air holes; numerical verification; photonic crystal fibers; Birefringence; Dispersion; Finite element methods; Helium; Holey fibers; Lattices; Optical fiber polarization; Photonic crystal fibers; Predictive models; Region 3;
Journal_Title :
Photonics Technology Letters, IEEE
