COMPACT MODE-SIZE TRANSITION USING A FOCUSING REFLECTOR
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United States of America Patent
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Issued Date -
Dec 26, 2013
app pub date -
Jun 26, 2013
filing date -
Jun 26, 2012
priority date (Note) -
Abandoned
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Abstract
Disclosed herein are techniques, methods, structures and apparatus for optically coupling optical waveguides and optical structures exhibiting different widths in which In which a focusing reflector is used to optically couple a relatively wide optical waveguide to a relatively narrow optical waveguide. An exemplary method according to the present disclosure comprises the steps of: providing the first waveguide that is 5 or more wavelengths in width; providing the second waveguide that is 3 or less wavelengths in width; coupling light emanating from the first waveguide to the second waveguide through the effect of a slab waveguide having a curved edge.
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