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. 02, 1997
Filed:
Nov. 08, 1995
Applicant:
Inventors:
Ayumu Tsujimura, Mishima-gun, JP;
Kazuhiro Okawa, Hirakata, JP;
Satoshi Kamiyama, Sanda, JP;
Tsuneo Mitsuyu, Hirakata, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 45 ;
Abstract
A semiconductor laser of the present invention includes: a Zn.sub.1-X Cd.sub.X Se active layer (0<X.ltoreq.0.3); a pair of optical confinement structures for interposing the Zn.sub.1-x Cd.sub.X Se active layer therebetween; and a pair of cladding layers for interposing the optical confinement structures and the Zn.sub.1-X Cd.sub.X Se active layer therebetween, wherein an energy band gap of the optical confinement structure monotonously increases as a distance from the Zn.sub.1-X Cd.sub.X Se active layer increases.