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:
Dec. 13, 2005
Filed:
Jan. 11, 2000
Ananth Dodabalapur, Millington, NJ (US);
Attila Mekis, Cambridge, MA (US);
John A. Rogers, New Providence, NJ (US);
Richart Elliott Slusher, Lebanon, NJ (US);
Ananth Dodabalapur, Millington, NJ (US);
Attila Mekis, Cambridge, MA (US);
John A. Rogers, New Providence, NJ (US);
Richart Elliott Slusher, Lebanon, NJ (US);
Agere Systems Inc., Berkeley Heights, NJ (US);
Abstract
A two-dimensional photonic crystal coupler is disclosed, together with a cross-coupled laser structure that is based on a two-dimensional photonic crystal coupler stage. Unlike traditional grating couplers, this two-dimensional photonic crystal coupler can couple light into a single or a plurality of discrete directions in the far-field, i.e., the output light may be unidirectional or discrete. The coupler can be integrated with one-dimensional lasers, a distributed feedback laser, a distributed Bragg reflector laser, and integrated on the same waveguide as the lasers. A resonant cavity coupler design improves the coupling efficiency of two-dimensional photonic crystal-based couplers.