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:
Nov. 20, 2007
Filed:
Mar. 17, 2006
Lawrence C. Gunn, Iii, Encinitas, CA (US);
Thierry J. Pinguet, Pasadena, CA (US);
Maxime J. Rattier, Paris, FR;
Jeremy Witzens, Pasadena, CA (US);
Lawrence C. Gunn, III, Encinitas, CA (US);
Thierry J. Pinguet, Pasadena, CA (US);
Maxime J. Rattier, Paris, FR;
Jeremy Witzens, Pasadena, CA (US);
Luxtera, Inc., Carlsbad, CA (US);
Abstract
A polarization splitting grating coupler (PSGC) connects an optical signal from an optical element, such as a fiber, to an optoelectronic integrated circuit. The PSGC separates a received optical signal into two orthogonal polarizations and directs the two polarizations to separate waveguides on an integrated circuit. Each of the two separated polarizations can then be processed, as needed for a particular application, by the integrated circuit. A PSGC can also operate in the reverse direction, and couple two optical signals from an integrated circuit to two respective orthogonal polarizations of one optical output signal sent off chip to an optical fiber.