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:
Nov. 18, 2014
Filed:
Sep. 15, 2010
Jens Ulrich Thomas, Jena, DE;
Christian Voigtlaender, Jena, DE;
Stefan Nolte, Jena, DE;
César Jáuregui Misas, Jena, DE;
Fabian Stutzki, Jena, DE;
Jens Limpert, Jena, DE;
Andreas Tuennermann, Welmar, DE;
Jens Ulrich Thomas, Jena, DE;
Christian Voigtlaender, Jena, DE;
Stefan Nolte, Jena, DE;
César Jáuregui Misas, Jena, DE;
Fabian Stutzki, Jena, DE;
Jens Limpert, Jena, DE;
Andreas Tuennermann, Welmar, DE;
Abstract
The invention relates to a transverse mode filter in an optical waveguide (). The aim of the invention is to produce a transverse mode filter that permits a monolithic construction of a laser in a multi-mode waveguide. To achieve this, according to the invention the filter comprises a Fabry-Perot cavity integrated into the optical waveguide () and comprising two reflective elements () situated at a distance from one another. In addition, the waveguide () is modified in the region of the Fabry-Perot cavity and/or in the region of the reflective elements () in relation to the remaining regions of the waveguide with respect to the effective refractive index of at least one mode of the waveguide.