Abstract

A four-port device, consisting of a codirectional coupler with a grating overlay, is analyzed using four-wave coupled-wave theory. Both fully synchronous and asynchronous cases are treated, and the results from the coupled-wave analysis are then related to modal analysis. The implications of the results for both active and passive devices based round the same geometry are then discussed.

© 1985 Optical Society of America

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Figures (15)

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