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. 07, 1976
Filed:
Jun. 30, 1975
Applicant:
Inventors:
Luigi d'Auria, Paris, FR;
Daniel Ostrowsky, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
331 / ; 350 / ;
Abstract
An optical radiation generator, controlled by an input current, comprising a light emissive diode optically coupled to an optical waveguide and a photodiode located close to the radiating surface of the emissive diode for picking off a part of the optical radiation and for delivering a feedback current which is used in a current negative feedback loop. The light emissive diode, the extremity of the waveguide and the photodiode are encased in a transparent material providing optical coupling and mechanical stability.