Abstract
Waveguide lenses are recognized as key components for signal processing and source collimation in integrated-optical systems. A mode-index-type waveguide lens is most similar in design to conventional bulk lenses, focusing by the curvature of the boundary between regions of differing refractive properties (i.e., effective refractive index N in waveguides), which can result from waveguide thickness differences.1,2
© 1990 Optical Society of America
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