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:
May. 29, 2007
Filed:
Oct. 24, 2002
Michael R. Watts, Hingham, MA (US);
Steven G. Johnson, St. Charles, IL (US);
Hermann A. Haus, Lexington, MA (US);
John D. Joannopoulos, Belmont, MA (US);
Michael R. Watts, Hingham, MA (US);
Steven G. Johnson, St. Charles, IL (US);
Hermann A. Haus, Lexington, MA (US);
John D. Joannopoulos, Belmont, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
The present invention provides a micro-resonator including a plurality of waveguides forming optic junctions therebetween, with adjacent waveguides having different core permittivities and different cladding permittivities. Adjacent waveguides are mode-matched through adjustments of the core permittivities and the cladding permittivities of the waveguides to reduce or eliminate junction radiation, thereby providing high performance.