Planar waveguide structure with tightly curved waveguides
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United States of America Patent
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Oct 27, 2009
Grant Date -
Feb 8, 2007
app pub date -
Jun 23, 2006
filing date -
Apr 18, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Ridge and buried waveguide structures feature a plurality of trenches disposed proximate the waveguides in order to enhance confinement of an optical signal propagating within the waveguide are described. Additionally, an adiabatic transition region where the distance between trenches and waveguide is featured.
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