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. 14, 1992
Filed:
Sep. 14, 1990
Applicant:
Inventors:
Hartmut Eisele, Ostfildern/Ruit, DE;
Olaf Hildebrand, Stuttgart, DE;
Albrecht Mozer, Bietigheim, DE;
Michael Schilling, Stuttgart, DE;
Heinz Schweizer, Stuttgart, DE;
Klaus Wunstel, Schwieberdingen, DE;
Ulrich Spalthoff, Stuttgart, DE;
Assignee:
Alcatel N.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 50 ; 372 45 ; 372 46 ; 372 98 ; 372 97 ; 372 99 ; 372102 ; 385-4 ; 385-8 ; 385-2 ; 385130 ;
Abstract
A semiconductor laser which includes a controllable beam splitter has three segments including laser-active zones and a monitor diode forming a cross-shaped laser connected with one another by way of the beam splitter. The beam splitter is equipped with electrodes for controlling optical coupling between the segments.