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:
Jan. 18, 1983
Filed:
Feb. 20, 1981
Applicant:
Inventors:
Jean P Breton, Paris, FR;
Adalbert Maciaszek, Paris, FR;
Assignee:
Lignes Telegraphiques et Telephoniques, Conflans Ste. Honorine, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455618 ; 372 29 ; 372 30 ; 372 31 ; 372 33 ;
Abstract
A device for automatically regulating the output power of a transmitter module in an optical-fiber transmission system comprises a first circuit connected between a temperature sensor and the laser diode in order to regulate the direct current of the laser diode, and a second circuit connected between a photodiode and the laser diode in order to regulate the laser-diode modulation current.