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:
Sep. 29, 1992
Filed:
Jun. 25, 1991
Applicant:
Inventors:
Claude Brehm, Montrouge, FR;
Jean-Yves Boniort, Limours, FR;
Andre Tardy, Egly, FR;
Jacques Com-Nougue, Paris, FR;
Assignee:
Alcatel Fibres Optiques, Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; B23K / ; B05D / ;
U.S. Cl.
CPC ...
385128 ; 385141 ; 385147 ; 21912168 ; 21912169 ; 427163 ; 427249 ; 427250 ;
Abstract
Optical fiber suitable for use in optical time domain reflectometry and method of manufacturing the fiber. The method of manufacturing the optical fiber suitable for use in optical time domain reflectometry includes, during drawing of the fiber (2), a thin continuous coating is deposited on the fiber. A part of the coating is thereafter removably ablated in the form of a helix (15) coaxial with the fiber by rotating a laser beam (17) in a plane orthogonal to the axis simultaneously with axial movement of the fiber.