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. 15, 1988
Filed:
Jan. 21, 1986
Abstract
A fiber optic coupler for coupling 2.sup.n inputs and one output, n being an integer, comprising: two halves of a solid part formed with 2.sup.n -1 identical convex grooves parallel to a midplane and to a fractioning plane along which the part was separated into two halves. A plurality of optical fiber lengths are located each in one of the grooves, the halves and fibers are cut along a plane transverse to the midplane and fractioning plane at a depth selected for eliminating half of the cross-section of the fibers in the midplane. An auxiliary part formed with 2.sup.n -1 grooves having the same distribution as the 2.sup.n -1 grooves in the halves is retained in abutment against the halves, end portions of the fiber lengths being located in the grooves for optical coupling each with the end surfaces of two lengths, whereby 2.sup.n -1 elementary 2-to-1 elementary couplings are achieved.