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:
Jan. 09, 2007
Filed:
Mar. 11, 2004
Lawrence C. Gunn, Iii, Encinitas, CA (US);
Thierry J. Pinguet, Cardif-By-The-Sea, CA (US);
Maxime J. Rattier, Paris, FR;
Zhen-li Ji, Pasadena, CA (US);
Jeremy Witzens, Pasadena, CA (US);
Lawrence C. Gunn, III, Encinitas, CA (US);
Thierry J. Pinguet, Cardif-By-The-Sea, CA (US);
Maxime J. Rattier, Paris, FR;
Zhen-Li Ji, Pasadena, CA (US);
Jeremy Witzens, Pasadena, CA (US);
Luxtera, Inc., Carlsbad, CA (US);
Abstract
A fiber to chip coupling connecting an optical fiber to an integrated circuit. A section of fiber is laid on top of the surface of the chip, where the end of the fiber has been cut at an angle to form an angled tip. The angled tip has a flat surface which reflects light down to a waveguide grating coupler disposed on the integrated circuit. Light is reflected off the reflective surface of the angled tip by total internal reflection. The waveguide grating coupler is designed to accept the slightly diverging light beam from the reflective surface of the angled tip of the fiber. Light can also propagate through the fiber to chip coupler in the opposite direction, up from the substrate through the waveguide grating and into an optical fiber after bouncing off the reflective surface of the angled tip.