Method and laser pulse source apparatus for generating fs laser pulses

US9627843B2 · kind B2 · utility

Assignees

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US
• Ludwig-Maximilians-Universitat Munchen · DE

Inventors

• Jinwei Zhang · Ningbo City, CN
• Oleg Pronin · Garching bei München, DE
• Jonathan Brons · Oberndorf, DE

Key dates

• Filing date: May 4, 2016
• Grant date: Apr 18, 2017
• Expiry date: May 4, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/1618
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A method of generating fs laser pulses (1), includes steps of creating a circulating light field in a resonator cavity (10) with multiple resonator mirrors (11-18) by pumping at least one gain medium (21, 22) included in the resonator cavity (10), and passing the circulating light field through a first Kerr medium (31) included in the resonator cavity (10), so that the fs laser pulses (1) are formed by self-amplitude modulation of the circulating light field, wherein the resonator cavity (10) includes at least one supplementary Kerr medium (32-36) enhancing the self-amplitude modulation of the circulating light field, and each of the first Kerr medium (31) and the at least one supplementary Kerr medium (32-36) provide different non-linear Kerr lens contributions to the self-amplitude modulation of the circulating light field. Laser pulse source apparatus (100) for generating fs laser pulses (1) is also described.