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US Patent 11747561 Sliced grating coupler with increased beam alignment sensitivity

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

Patent Inventor Names

Gerard Schmid

Kyle Preston

Shannon Stewman

Date of Patent

September 5, 2023

Patent Application Number

16861399

Date Filed

April 29, 2020

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Patent Primary Examiner

Apparatus and methods relating to coupling radiation from an incident beam into a plurality of waveguides with a grating coupler are described. A grating coupler can have offset receiving regions and grating portions with offset periodicity to improve sensitivity of the grating coupler to misalignment of the incident beam.

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