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:
Aug. 01, 2006
Filed:
Jul. 11, 2003
Applicants:
Kent D. Choquette, Urbana, IL (US);
Noriyuki Yokouchi, Yokohama, JP;
Inventors:
Kent D. Choquette, Urbana, IL (US);
Noriyuki Yokouchi, Yokohama, JP;
Assignees:
The Board of Trustees of the University of Illinois, Urbana, IL (US);
The Furukawa Electric Co., Ltd., Chiyoda-ku, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01); H01S 3/08 (2006.01); H01S 3/098 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention is directed to a photonic crystal defect structure for a vertical cavity surface emitting laser (VCSEL). In accordance with the invention, a set of holes is formed in a pattern with one or more missing holes forming a defect in the pattern of the photonic crystal, according to a proscribed depth, hole diameter, and pattern pitch which will insure operation in a single transverse mode.