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:
Apr. 27, 1982
Filed:
Oct. 02, 1980
Applicant:
Inventors:
Raymond Henry, Paris, FR;
Jean-Victor Bouvet, Paris, FR;
Alain Chapard, Paris, FR;
Jacques Simon, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H01L / ;
U.S. Cl.
CPC ...
350 9617 ; 156644 ; 29572 ; 29580 ; 29588 ; 29589 ; 250227 ; 350 9615 ; 350 9617 ;
Abstract
A method of optical coupling between an optical fiber and an optoelectronic component for an optical-fiber telecommunications link is applied to the fabrication of a transmitting and/or receiving optoelectronic head. In a semiconductor wafer having a p.sup.- layer and a p.sup.+ layer, chemical etching of the p.sup.- layer is followed by n-type doping of an n.sup.+ layer at the bottom of the cavity and on the edge of the cavity. Highly accurate positioning of the optical fiber is thus ensured as well as excellent coupling between the fiber and the light-emitting diode or photodiode thus provided.