Optical amplifier arrangement

US9484709B2 · kind B2 · utility

Assignees

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

Inventors

• Arno Klenke · Jena, DE
• Enrico Seise · Eisenberg, DE
• Jens Limpert · Jena, DE
• Andreas Tuennermann · Jena, DE

Key dates

• Filing date: Aug 29, 2011
• Grant date: Nov 1, 2016
• Expiry date: Oct 5, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/2316
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention relates to an optical amplifier arrangement for amplifying ultra-short pulsed laser radiation comprising a mode-locked laser (1) and two or more optical amplifiers (3) arranged downstream of the laser (1) in the propagation direction of the laser radiation. Optical amplifier arrangements of this type are known in the prior art. Here the intention is to present an alternative to the known amplifier arrangements. The invention proposes arranging between the laser (1) and the optical amplifiers (3) at least one splitting element (2) which splits the pulsed laser radiation between a plurality of amplifier channels (4), wherein each amplifier channel (4) has at least one optical amplifier (3), and wherein at least one common combination element (5) is disposed downstream of the amplifier channels (4) and coherently superimposes the pulsed laser radiation amplified in the amplifier channels (4).