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:
May. 27, 1986
Filed:
Oct. 13, 1983
Jean-Pierre Laude, St Cyr la Riviere, FR;
Instruments SA, , FR;
Abstract
A coupler extracting an optical signal between an upstream fiber (1) and a downstream fiber (2) to ensure the continuity of transmission from (1) to (2) and at the same time to extract through (3) a part of the signal and to inject from (4) towards (2) a new signal, a coupler employing a spherical mirror (17) by object-image conjugation of the two fibers (1, 2) which are arranged symmetrically relative to the center (C.sub.1) of the mirror. According to the invention it comprises a second spherical partial mirror (13) with the same equatorial plane (11) as the first mirror and placed between the first mirror (17) and the plane (11). The centers (C.sub.1) and (C.sub.2) of the two mirrors are offset in the plane (11) and the fibers (3) and (4) are arranged symmetrically to (1) and (2) relative to the center C.sub.2 of the mirror (13).