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:
Mar. 29, 1988
Filed:
Sep. 10, 1985
Applicant:
Inventors:
Luigi d'Auria, Sceaux, FR;
Guy Chevalier, Champlan, FR;
Assignee:
Thomson CSF, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9615 ; 350 9618 ; 330308 ;
Abstract
Optical fibre delay line device for producing a delay on a guided light pulse proportional to the length of the optical fibre, comprising single means for the emission and detection of the light pulse, constituted by a semiconductor laser diode also having photodetecting properties and coupled to one of the ends of the optical fibre. The other end of the optical fibre is rendered reflective or is coupled to a waveguide of variable length, which also has a reflecting end, in such a way that the light pulse traverses the length of the optical fibre twice.