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:
Feb. 04, 2003
Filed:
Sep. 17, 2001
Applicant:
Inventor:
Anand Gopinath, Wayzata, MN (US);
Assignee:
Regents of the University of Minnesota, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/715 ; H01S 3/082 ;
U.S. Cl.
CPC ...
H01L 2/715 ; H01S 3/082 ;
Abstract
A vertical cavity surface emitting laser, includes a substrate, a lower mirror stacked adjacent the substrate, an active region operably coupled to the lower mirror stack, and an upper mirror operably coupled to the active region, opposite the lower mirror. The lower mirror, active region, and upper mirror are arranged in a vertical stack to form a laser. A plurality of spaced apart regions of increased refractive index which extend in a vertical direction at least partially through the vertical stack to promote single mode confinement in the stack.