Active stabilization of mode instabilities in optical waveguides

US10490969B2 · kind B2 · utility

Assignees

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE
• Friedrich-Schiller-Universitat Jena · DE

Inventors

• Christoph Stihler · Jena, DE
• César Jáuregui Misas · Jena, DE
• Jens Limpert · Jena, DE
• Hans-Juergen Otto · Schramberg, DE
• Andreas Tuennermann · Jena, DE
• Fabian Stutzki · Jena, DE

Key dates

• Filing date: Jul 14, 2017
• Grant date: Nov 26, 2019
• Expiry date: Aug 16, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/10013
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A method of propagating a laser signal through an optical waveguide and a waveguide laser system provide a novel way of stabilizing the beam emitted by a fiber laser system above the mode instability threshold wherein the beat length of two or more interfering transverse modes of the laser signal in the optical waveguide is modulated in time.