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:
Apr. 01, 2003
Filed:
Aug. 23, 1999
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 ...
H01S 5/10 ;
U.S. Cl.
CPC ...
H01S 5/10 ;
Abstract
A vertical cavity surface emitting laser, includes a first mirror, a second mirror and an active region positioned between the first and second mirrors and optically coupled to the mirrors. An increased index of refraction region in the first mirror extends in a direction generally perpendicular to the active region. The increased index of refraction region having a refractive index which is greater than a remaining portion of the first mirror and configured to produce substantially a single optical mode in the laser.