Abstract

The diffraction efficiency of a focusing grating coupler has been modeled using a vector scattering treatment. The diffracted field components have been solved for the case of a TE-polarized guided wave. The amplitudes have been compared with those at the exit pupil of an aplanatic lens. The field distribution at the focal plane has been computed for field angles of 0 and 15°.

© 1988 Optical Society of America

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