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:
Sep. 15, 1992
Filed:
Aug. 24, 1990
Applicant:
Inventors:
Klaus Wunstel, Schwieberdingen, DE;
Reinold Weinmann, Esslingen, DE;
Assignee:
Alcatel N.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 46 ; 372 45 ;
Abstract
In a semiconductor laser having a semi-insulating layer on the sides of a mesa to confine the current to the mesa during operation of the laser, at least one n-type layer and at least one p-type layer are provided above or below the semi-insulating layer.