Patent · US Active

Quantum cascade laser structure

US8971369B2 · kind B2 · utility

0Cited by

2References

21Claims

0Family size

Assignee

Quantiox GmbH · DE

Inventors

William Masselink · Urbana, US
Mykhaylo Petrovych Semtsiv · Berlin, DE

Key dates

Filing date	Apr 10, 2012
Grant date	Mar 3, 2015
Priority date	—
Expiry date	Aug 9, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/3415
WIPO fieldOptics
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.