The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2007
Filed:
Feb. 10, 2004
Lawrence C. Gunn, Iii, Encinitas, CA (US);
Thierry J. Pinguet, Cardif-By-The-Sea, CA (US);
Maxime J. Rattier, Paris, FR;
Lawrence C. Gunn, III, Encinitas, CA (US);
Thierry J. Pinguet, Cardif-By-The-Sea, CA (US);
Maxime J. Rattier, Paris, FR;
Luxtera, Inc., Carlsbad, CA (US);
Abstract
An optical waveguide grating coupler for coupling light between a planar waveguide and an optical element such as an optical fiber. The optical waveguide grating coupler includes a grating comprising a plurality of elongate scattering elements. The optical waveguide grating coupler is preferably flared, and in various embodiments has hyperbolically shaped sidewalls. The elongate scattering elements are preferably curved, and in some embodiments, the scattering elements have elliptically curved shapes. Preferably, the elongated scattering elements have grating widths selected to accommodate the desired optical intensity distribution.