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:
Jul. 23, 1991
Filed:
Nov. 02, 1989
Applicant:
Inventors:
Roland Gessner, Geretsried, DE;
Margit Beschorner, Assling, DE;
Manfred Druminski, Vaterstetten, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 45 ; 357-4 ; 357 17 ;
Abstract
A semiconductor laser on an InP substrate having a first confinement layer and a second confinement layer of (Ga.sub.0.17 Al.sub.0.83).sub.0.48 In.sub.0.52 As and an active layer in quantum well structure having radiation-generating QW-layers of Ga.sub.1-y In.sub.y As.