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:
Dec. 07, 1993
Filed:
Feb. 21, 1992
Applicant:
Inventors:
Katsuhiro Akimoto, Kanagawa, JP;
Hiroyuki Okuyama, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 45 ; 257 13 ;
Abstract
A double heterojunction II-VI group compound semiconductor laser has a substrate of GaAs or Gap, a first cladding layer, an active layer, and a second cladding layer which are successively deposited on the substrate by way of epitaxial growth. One or both of the first and second cladding layers have a composition of ZnMgSSe.