Technology Offers

Laser Pulses – Amplification Made Easy

Abstract

Advantages

  • Simple, space-efficient, optical compressor configuration
  • Resource-friendly optical layout
  • No materials-specific laser pulse peak density
  • Long-lasting laser compression unit

Fiedls of applications

This invention shows its highlights in the field of application where amplifier laser systems with ultra-high laser peak power are required for e.g. structuring and maniplutaing surfaces at wish. Possible applications comprises among others drilling of holes, cutting corbon reinforced plastics fibers, structuring large area surfaces and welding of glas. High-intensity lasers are also used in scientific applications such as atmospheric studies, or the generation of high-harmonics will benefit from the present invention.

Background

Problem

Laser pulse amplification soon reaches a limit once you go beyond the materials damage threshold of the optical component being used. The invention comprises a method and a focused effort to amplify seed laser pulses, which simultaneously minimizes the risk of damaging the compressor unit. Thus, this invention helps to increase the lifetime cycle of this particular compressor unit.

Solution

This invention allows to separate certain laser pulse trains in a timely manner, but not in the space domain, to obtain so-called laser-sub-pulses. Therefore the optical amplification compartment needs only a single compressor unit which leads to a very efficient cost-benefit ratio in all aspects of this technology field. The time distribution of those laser-sub-pulses enables the system to be satisfied with a single passively driven laser combiner unit and laser pulse train combiner path. Therefore, there is no need for an active stabilization of the laser cavity length. For that purpose a special combiner scheme is used. The core of this invention can be described by a symmetrical optical path for the pulse divider and pulse combiner section, which acts accordingly depending on the flow direction of the laser-sub-pulses. In short, this invention allows laser pulse amplification at a low cost and small footprint for the first time.   

 Abb 1:  Schematics of optical components  [F.Bienert, Institut für Strahlwerkzeuge, University of Stuttgart]
Abb 1: Schematics of optical components [F.Bienert, Institut für Strahlwerkzeuge, University of Stuttgart]
Exposé
Contact
Dr. Hans-Jürgen Eisler
Technologie-Lizenz-Büro (TLB)
Ettlinger Straße 25
76137 Karlsruhe
Phone + 49 721 / 790 040
eisler(at)tlb.de | www.tlb.de
Development Status
TRL3
Patent Situation
EP 4220871 A1 (FR, GB, DE) granted
US18/159,137 pending
EP 4220871 B1 (CZE, LTU) granted
Reference ID
21/019TLB
Service
Technologie-Lizenz-Büro GmbH has been entrusted with exploiting this technology and assisting companies in obtaining licenses.