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:
Mar. 03, 2015
Filed:
Apr. 10, 2012
William Ted Masselink, Berlin, DE;
Mykhaylo Petrovych Semtsiv, Berlin, DE;
William Ted Masselink, Berlin, DE;
Mykhaylo Petrovych Semtsiv, Berlin, DE;
Quantiox GmbH, Berlin-Adlershof, DE;
Abstract
A quantum cascade laser structure having a plurality of cascades each of which comprises a number of alternately arranged quantum wells and barriers of different thicknesses and heights, wherein at least one of the quantum wells and at least one of the barriers is under mechanical strain and the quantum wells and the barriers are coordinated such that the existing mechanical strains are largely compensated within one cascade, wherein each of the barriers comprise one or more barrier layers, wherein each cascade comprises a thinnest quantum well, a lowest barrier, a thickest quantum well, a highest barrier, and the highest barrier is followed by alternately arranged quantum wells and barriers.