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. 21, 1993
Filed:
Nov. 05, 1991
Applicant:
Inventors:
Keisuke Shinozaki, Tokyo, JP;
Takeshi Kamijoh, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 22 ; 359328 ;
Abstract
A second harmonic generator has a semiconductor laser for a fundamental wave light source. The laser includes a semiconductor laser chip and a quasi-phase matching element optically coupled together in series. The semiconductor laser chip can lase utilizing feedback of a light from the quasi-phase matching element. The quasi-phase matching element receives a laser emitted from the semiconductor laser chip and generates a second harmonic light using the laser beam as a fundamental wave light.