Ngr. Broderick et Cm. Desterke, ANALYSIS OF NONUNIFORM GRATINGS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 52(4), 1995, pp. 4458-4464
It has been shown earlier that the launching of gap solitons into nonu
niform nonlinear Bragg gratings can be significantly easier than for u
niform nonlinear Bragg gratings. In this paper we examine a variety of
simple nonuniform Bragg gratings and compare their suitability for th
e launching process, by studying the positions of the zeros of the ref
lection spectrum.