Method of generating enhanced intra-resonator laser light, enhancement resonator and laser device

US8976834B2 · kind B2 · utility

Assignee

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Jan KASTER · Munich, DE
• Ioachim Pupeza · Fürstenfeldbruck, DE
• Ernst Fill · Garching bei München, DE
• Ferenc Krausz · Garching an der Alz, DE

Key dates

• Filing date: Sep 6, 2010
• Grant date: Mar 10, 2015
• Expiry date: Nov 22, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/0092
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A method of generating intra-resonator laser light (1) comprises the steps of coupling input laser light (2), e. g. laser pulse or continuous-wave light, into an enhancement resonator (20), which comprises at least two curved resonator mirrors (21, 22, 23, 24) and which is free of a laser light amplifying medium, said at least two curved resonator mirrors (21, 22, 23, 24) being consecutively arranged and spanning at least one resonator path with a predetermined resonator length (Lres), wherein said at least two curved resonator mirrors (21, 22, 23, 24) providing at least two pairs of consecutive curved resonator mirrors which are serially coupled along said at least one resonator path, and coherent addition of the input laser light (2) in the enhancement resonator so that the intra-resonator laser light (1) is formed, wherein said at least two pairs of consecutive curved resonator mirrors each have a detuned concentric configuration, which deviates from a concentric configuration with regard to at least one of a distance between the curved mirrors. and an angle of incidence on the curved mirror surfaces. Furthermore, an enhancement resonator (20), in particular being configured for…