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:
Jul. 29, 1986
Filed:
Jul. 01, 1983
Applicant:
Inventors:
Assignee:
Handotai Kenkyo Shinkokai, Miyagi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 45 ; 357 17 ; 372 46 ; 372 48 ; 372 49 ; 372 50 ;
Abstract
A semiconductor laser suitable for incorporation into integrated circuits by providing the laser device with a short resonator dimensioned so as to restrict the power consumption of the device to about 1 mW or less. This is made possible by improving the optical confinement, carrier confinement and the reflectivity of end faces in the lasing cavity with a short length and a narrow stripe width of the cavity. Double-layered mirrors are formed at the two opposed ends of the resonator by depositing a film of dielectric insulating material directly on each end and covering the film with a layer of metal.