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. 04, 2006
Filed:
Jun. 18, 2003
Solomon Assefa, Cambridge, MA (US);
Peter Bienstman, Gent, BE;
Gale S. Petrich, Arlington, MA (US);
Alexei A. Erchak, Cambridge, MA (US);
Steven G. Johnson, St. Charles, IL (US);
Leslie A. Kolodziejski, Belmont, MA (US);
John D. Joannopoulos, Belmont, MA (US);
Solomon Assefa, Cambridge, MA (US);
Peter Bienstman, Gent, BE;
Gale S. Petrich, Arlington, MA (US);
Alexei A. Erchak, Cambridge, MA (US);
Steven G. Johnson, St. Charles, IL (US);
Leslie A. Kolodziejski, Belmont, MA (US);
John D. Joannopoulos, Belmont, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A coupling element includes a first stage having a dielectric waveguide that is transitioned to a waveguide having a sequence of resonators with a fixed period. A second stage transitions the waveguide to a photonic crystal waveguide by gradually bringing closer at an angle the cladding bulk of the photonic crystal to the waveguide.