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. 16, 2017
Filed:
Jun. 30, 2014
Northrop Grumman Litef Gmbh, Freiburg, DE;
Sven Voigt, Freiburg, DE;
Steffen Zimmermann, Teningen, DE;
Northrop Grumman LITEF GmbH, , DE;
Abstract
The invention relates to an integrated optical coupler () comprising a substrate (), at least two planar waveguides (), which are arranged on or in the substrate () and consist of a material having a virtually isotropic refractive index (anisotropy of the refractive index of less than 10), and al least three monomode fibers () coupled to the planar waveguides (). One of the monomode fibers () is a polarization-maintaining fiber. A fiber optic system according to the invention comprises an integrated optical coupler () according to the invention, a light source () that is suitable for generating light beams, and a first pigtail fiber (), which is connected at one end to the light source () and at the other end to the polarization-maintaining fiber () of the integrated optical coupler ().