OPTICAL GRATING COUPLER HAVING WAVELENGTH TUNABLE STRUCTURE
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United States of America Patent
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Issued Date -
Dec 10, 2015
app pub date -
Apr 17, 2015
filing date -
Jun 9, 2014
priority date (Note) -
Abandoned
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Abstract
A structure of an optical grating coupler for tuning the center wavelength of signals which are propagated to a waveguide by changing the effective refractive index of the optical grating coupler is provided. The optical grating coupler includes a region for changing the effective refractive index of the optical grating coupler, which is included in the inside or outside of the optical grating coupler. The region receives a signal for changing the effective refractive index of the optical grating coupler.
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