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. 21, 1976
Filed:
Aug. 19, 1975
Applicant:
Inventors:
Roy Lang, Tokyo, J;
Kohroh Kobayashi, Tokyo, J;
Assignee:
Nippon Electric Company, Ltd., Tokyo, J;
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
331 / ; 331 / ;
Abstract
A semiconductor laser device is disclosed in which an external light beam having a wavelength approximately the same as at least one of the wavelengths of the resonance axial mode for the modulation semiconductor laser to oscillate is injected into the optical resonator of the modulation semiconductor laser.