Phys. Rev. E 55, 3634–3646 (1997)Theory of grating superstructures
We develop the theory of linear and nonlinear grating superstructures, gratings in which the parameters vary periodically with position on the scale of typically about 1 mm. Following earlier work in semiconductors, these have now been written in optical fibers. We develop the theory by introducing a set of superenvelopes: envelopes of the usual envelope functions of the grating structure. We show that under very general conditions these superenvelopes satisfy a set of supercoupled mode equations, and that these equations have solitary wave solutions. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.55.3634
DOI:
10.1103/PhysRevE.55.3634
PACS:
03.40.Kf, 42.81.Wg, 42.79.Dj
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