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:
Nov. 14, 2000
Filed:
Dec. 17, 1999
Applicant:
Inventors:
Assignee:
Infineon Technologies AG, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
H01S / ; H01S / ;
U.S. Cl.
CPC ...
372 50 ;
Abstract
A monolithically integrated combination of a laser diode and a modulator is provided, in which one region of a common active layer structure is used for the laser and an adjacent region of that layer structure is used for the modulator, and in which the layer structure is an MQW structure with asymmetric potential wells decoupled from one another. The material compositions in the potential wells each have the smallest energy bandgap on the n-type side and are matched to the layer structure in such a way that, when the potential difference is applied in the reverse bias direction, a blue shift of the absorption edge beyond the laser wavelength takes place.