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:
Sep. 04, 1990
Filed:
Mar. 17, 1989
Applicant:
Inventor:
Albrecht Mozer, Bietigheim-Bissingen, DE;
Assignee:
Alcatel N.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 96 ; 372 45 ; 372 46 ; 372 68 ;
Abstract
A device for the amplification of light including a periodic semiconductor structure composed of different layers extending in the propagation direction of the optical wave. The periodic structure is constructed of a series connection of at least two semiconductor materials having the band gaps E1 and E2 and the refractive indices n1 and n2 (e.g., E1<E2, n1>n2), can be operated as follows: