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. 11, 1984
Filed:
Mar. 21, 1984
Applicant:
Inventors:
Claude Claverie, Paris, FR;
Jean-Yves Eouzan, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01S / ; H01S / ;
U.S. Cl.
CPC ...
372 38 ; 455609 ;
Abstract
The protection device for a laser diode supplied by the superimposition of a DC biasing current and a variable information-carrying current, through an opto-electronic feedback system, comprises a variable resistor connected upstream of the laser diode and of the feedback system so as to form a closed loop with the information-carrying current source and so as to ensure that the laser diode is biased before any injection of information-carrying current into this diode.