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. 17, 1990
Filed:
Aug. 07, 1989
Applicant:
Inventors:
Markus-Christian Amann, Munich, DE;
Bernhard Stegmueller, Augsburg, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 50 ; 372 23 ; 372 27 ; 372 97 ;
Abstract
A semiconductor laser arrangement is composed of two quasi-index guided laser diodes each with a light intensifying layer arranged in a plane shared by both diodes. The characteristics of the laser diodes are such that one polarization state predominates in one diode, while the other polarization state predominates in the other diode. Any desired degree of polarization dependency of the gain is set by the ratio of the operating currents of the two diodes, so that isotropic amplification can be achieved.