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. 20, 1991
Filed:
Jul. 15, 1985
Reinhard Engel, Munich, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An apparatus for coupling light into and out of optical waveguides to determine the amount of splicing attenuation at a splicing location between a first and second waveguide, characterized by a device for coupling light into the first waveguide and a device for coupling light out of the second waveguide. The device for coupling light into the first waveguide includes an arrangement for holding a portion of the first waveguide in a curved path to form a coupling region, a source of light and an additional optical waveguide for conducting light from the source to the coupling region. The output coupling device includes an arrangement for holding the second waveguide in a curved path, a photodetector for receiving light uncoupled from the second waveguide and an arrangement for measuring the intensity of the light received by the photodetector.