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:
Jul. 12, 1983
Filed:
Aug. 24, 1981
Applicant:
Inventor:
Dan Botez, Mt. Holly, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
372 45 ; 357 17 ; 372 46 ;
Abstract
A semiconductor laser having anti-guiding regions extending through the second confinement layer towards but not intersecting the active layer on both sides of the region of the confinement layer over a land between the grooves in the substrate. These anti-guiding regions serve to suppress higher order lateral optical modes by creating large radiative losses for these modes.