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. 21, 1992
Filed:
Sep. 27, 1990
Applicant:
Inventor:
Katsuhiko Goto, Itami, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 46 ; 372 45 ; 357-4 ; 357 16 ; 357 17 ;
Abstract
A semiconductor optical element includes a quantum well structure having a crystalline well layer of (Al.sub.x Ga.sub.1-x).sub.1-z In.sub.z P.sub.y As.sub.1-y (O.ltoreq.x<1, O.ltoreq.y<1, O<z<1) having a lattice constant that matches crystalline InP and two barrier layers of crystalline (Al.sub.x' Ga.sub.1-x').sub.1-z In.sub.z P.sub.y As.sub.1-y (x<x'.ltoreq.1) having lattice constant that matches crystalline wherein and at least a portion of the quantum well structure is disordered.