Transducer assembly having grating slits parallel to longitudinal axis of waveguide
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United States of America Patent
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May 7, 2013
Grant Date -
Jan 26, 2012
app pub date -
Jul 21, 2010
filing date -
Jul 21, 2010
priority date (Note) -
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Abstract
An apparatus having a transducer assembly that includes a waveguide having first and second cladding layers and a core layer between the first and second cladding layers, and a grating structured to couple electromagnetic radiation into the waveguide. The grating has a plurality of elongated slits that are substantially parallel to a longitudinal axis of the waveguide. The apparatus further has a light source mounted adjacent the waveguide to direct light onto the grating.
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