Using an asymptotic analysis, we obtain an eigenvalue equation for the gene
ral mode dispersion in Bragg fibers. The asymptotic analysis is applied to
calculate the dispersion relation and the field distribution of TE modes in
a Bragg fiber. We compare the asymptotic results with exact solutions and
find excellent agreement between them. This asymptotic approach greatly sim
plifies the analysis and design of Bragg fibers. (C) 2000 Optical Society o
f America.