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. 26, 2006
Filed:
Oct. 12, 2001
Applicants:
Philippe Chanclou, Brest, FR;
Philippe Gravey, Brest, FR;
Monique Thual, Lannion, FR;
Inventors:
Assignee:
France Telecom, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/14 (2006.01); G02B 6/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical collimator for single mode fibers includes a fiber segment (S) with mode expansion including an entry and an exit for a light beam. The entry of the fiber segment with mode expansion is on the side at which the core diameter is the smallest, and the exit is on the side at which the core diameter is the largest. The collimator further includes a fiber segment (S) with expansion holding coupled to the exit, the core diameter of which is equal to or greater than the largest core diameter of the fiber segment with mode expansion, so that the diameter of the light beam guided for this segment is kept constant.