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:
Aug. 14, 1979
Filed:
Jun. 07, 1977
Hans H Witte, Munich, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
An input/output coupler for multi-mode optical or light conducting fibers comprises a substrate, a first light conductor, which is disposed on the substrate and has an end face forming a coupling point or surface, a main light conducting fiber, which is disposed on the substrate with an end face at the coupling surface and a center of the end face offset by a distance a from the center of the coupling surface, and a strip waveguide, which is coupled to a branch light conducting fiber and is disposed on the substrate with an end face in contact with a portion of the coupling surface so that a portion of a light signal entering the coupler in the first light conductor is applied to both the main and branch light conducting fibers and signals entering the coupler in the branch and main light conducting fibers are applied to the first light conductor. The first light conductor may be either a light conducting fiber or an additional strip waveguide, which is coupled to a light conducting fiber. Preferably, the substrate has guide grooves formed in a layer of material for positioning the various light conducting fibers and the material of the layer is the same as the material used to form the strip waveguide.