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:
Feb. 06, 2001
Filed:
Apr. 16, 1998
Applicant:
Inventors:
Toshiya Fukuhisa, Ibaraki, JP;
Masaya Mannoh, Nara, JP;
Isao Kidoguchi, Kawanishi, JP;
Akira Takamori, Suita, JP;
Hideto Adachi, Ibaraki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/20 ;
U.S. Cl.
CPC ...
H01S 5/20 ;
Abstract
In a semiconductor laser including an active layer and a buried layer for absorbing laser light emitted from the active layer, an oscillation wavelength of the laser light is in a 650 nm band, an oscillation mode is a single transverse mode, and a peak of a light intensity distribution of the laser light is placed on the side opposite to the buried layer with respect to the center of the active layer.