Method and device for reducing mode instability in an optical waveguide

US9235106B2 · kind B2 · utility

Assignees

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

Inventors

• César Jáuregui Misas · Jena, DE
• Hans-Jurgen Otto · Jena, DE
• Fabian Stutzki · Jena, DE
• Florian Jansen · Villingen-Schwenningen, DE
• Tino Eidam · Jena, DE
• Jens Limpert · Jena, DE
• Andreas Tunnermann · Weimar, DE

Key dates

• Filing date: Apr 12, 2013
• Grant date: Jan 12, 2016
• Expiry date: Apr 12, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/1302
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention relates to a method and corresponding devices for reducing mode instability in an optical waveguide (1), a light signal becoming unstable in the optical waveguide (1) beyond an output power threshold and energy being transformed from a basic mode into higher order modes. The invention proposes a reduction in temperature variation (2) along the optical waveguide (1) and/or a reduction in changes in the optical waveguide (1) that are caused by spatial temperature variation as a result of mode interference.