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. 16, 2016
Filed:
Feb. 08, 2013
Georg Dorner, Bad Krozingen, DE;
Sven Voigt, Freiburg, DE;
Christian Koos, Siegelsbach, DE;
Wolfgang Freude, Karlsruhe, DE;
Juerg Leuthold, Walzbachtal, DE;
Georg Dorner, Bad Krozingen, DE;
Sven Voigt, Freiburg, DE;
Christian Koos, Siegelsbach, DE;
Wolfgang Freude, Karlsruhe, DE;
Juerg Leuthold, Walzbachtal, DE;
Northrop Grumman Litef GmbH, , DE;
Abstract
In an integrated optical circuit, light from a light source is polarized and coupled to a first and second strip waveguide. A waveguide coupling element couples the two optical signals from the two strip waveguides to different polarization modes of an optical fiber line. The optical fiber line is connected to a measuring head, which reflects the optical signal and in which a phase difference between the two optical partial signals is modulated in a magnetic field. In the waveguide coupling element, the reflected signal is split into two optical partial signals having the same polarization and the phase difference between the two partial signals is determined. A phase modulator device provides for closed-loop operation. Compared to fiber-optical concepts, the number of splices is reduced.