Nonlinear Codirectional Guided Wave Mode Conversion in Grating Structures

Year: 1988

Authors: Trillo S., Wabnitz S., Stegeman G.I.

Autors Affiliation: Optical Sciences Center, University of Arizona, Tucson, AZ, 85721, United States; Fondazione Ugo Bordoni, 00144, Rome, Italy

Abstract: We discuss the operational characteristics of a new all-optical device, based on a nonlinear grating, potentially capable of all-optical switching between dissimilar waveguide modes. The use of a grating allows for a substantial reduction in switching-power requirements, still permitting complete power-dependent mode-conversion. An unexpected feature is that efficient switching requires detuning from the low-power wave vector matching condition. The switching behavior is very sensitive to wavelength detuning, both from the Bragg condition and from the higher-order mode cutoff condition. Furthermore, operation of the device is strongly nonreciprocal with respect to interchanging the mode launching condition.


Volume: 6 (6)      Pages from: 971  to: 976

More Information: This research was supported by Fondazione Ugo Bordoni, by Dipartimento di Fisica dell’ Universita di Roma I, by NSA, by the Army Research Office under Grant DAAG 29-85-K.0173, and by the National Science Foundation under Grant ECS-8501249.
KeyWords: Optis Nonlinear; Switching systems; Waveguides optical
DOI: 10.1109/50.4088

Citations: 22
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