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. 31, 2015
Filed:
Dec. 21, 2012
Ronald Holzwarth, Munich, DE;
Marc Fischer, Munich, DE;
Michael Mei, Steinebach, DE;
Menlo Systems GmbH, Martinsried, DE;
Abstract
The invention relates to a system () for generating a (high-frequency) beat signal. The system has a first light source () with a multimode spectrum, a second light source () and a coupler and filter arrangement () with a first port () for coupling in light from the first light source (), and a second port () for coupling in light from the second light source (). Furthermore, a detector () is provided to which light of both light sources () can be supplied. The coupler and filter arrangement () has a spectral filter () for filtering out one or several modes from the spectrum of the first light source (), and a first fiber-optical coupler () for coupling the light of the second light source () and the not yet filtered or the already filtered light of the first light source (). The coupler and filter arrangement () is configured to be merely fiber-optical.