Scientific Results

Saturation of nonlinearities and waveguide device implications

Year: 1990

Authors: Assanto G., Sabini J.P., Finlayson N., Stegeman G.I., Trillo S., Wabnitz S.

Autors Affiliation: Optical Sciences Center, University of Arizona, Tucson, Arizona, 85721, United States; Fondazione Ugo Bordoni, Viale Europa 190, Roma, 00144, Italy

Abstract: Most analyses and simulations of all-optical guided-wave devices are based on Kerr nonlinearities. In practice, most media exhibit index saturation and reduced absorption with increasing intensity in wavelength regions where their nonlinearity is usefully large. Such non-Kerr-like behavior can deteriorate the all-optical response of guided-wave devices such as nonlinear Mach-Zehnder interferometers, directional and distributed couplers, and nonlinear gratings. Positive effects of saturation with regard to an integrated-optics beam scanner are mentioned.

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KeyWords: Nonlinear optics
DOI: 10.1117/12.962155

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