Yb-doped fiber laser system with 1kW, 10mJ and <300fs pulse for the generation of TW class few-cycle pulses

Breitkopf S, Hädrich S, Kienel M, Jójárt P, Várallyay Z, Osvay K, Simon P, Nagy T, Blumenstein A, Klas R, Buldt J, Stark LH, Shestaev E, Eidam T, Limpert J (2019)

Publication Type: Conference contribution

Publication year: 2019

Journal

Proceedings of SPIE Society of Photo-optical Instrumentation Engineers (SPIE)

Publisher: SPIE

Book Volume: 11370

Pages Range: 189-192

Conference Proceedings Title: Proceedings of SPIE - The International Society for Optical Engineering

Event location: Bol, HRV

ISBN: 9781510635128

Abstract

We present a 10-mJ and 1-kW, sub 300-fs CPA system with excellent beam quality (M2=1.1). To achieve such parameter-set, the output of 16 main-amplifier channels is coherently combined using a polarization-based filled-aperture scheme. The system exhibits excellent long-term stability of 0.3% RMS power fluctutations over >9hours and is a major part of the ELI-ALPS HR2 laser system. It will be combined with a nonlinear pulse compression unit that aims to achieve 5 mJ pulse energy at 100 kHz pulse repetition rate (i.e. 500 W of average power) and with pulse durations of 6 fs, i.e. a terawatt class laser. In addition to the CPA system we present first promising experimental results on compression of high energy pulses with high average power in a long stretched capillary setup. In a first proof-of-principle experiments, 5 mJ pulses at 100 kHz (500 W average power) are spectrally broadened in a 4 m long capillary to a bandwidth supporting <17 fs pulses. Further experimental results towards the achievement of the HR2 pulse parameters will be presented at the conference.

Involved external institutions

Active Fiber Systems (AFS) DE Germany (DE) ELI-HU Research and Development Non-Profit / ELI-ALPS HU Hungary (HU) Laser-Laboratorium Göttingen e.V. (LLG) DE Germany (DE) Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie im Forschungsverbund Berlin e.V. / Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy DE Germany (DE) Friedrich-Schiller-Universität Jena DE Germany (DE)

How to cite

APA:

Breitkopf, S., Hädrich, S., Kienel, M., Jójárt, P., Várallyay, Z., Osvay, K.,... Limpert, J. (2019). Yb-doped fiber laser system with 1kW, 10mJ and <300fs pulse for the generation of TW class few-cycle pulses. In Igor Jovanovic, Bojan Resan, Karoly Osvay, Giacomo Coslovich (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 189-192). Bol, HRV: SPIE.

MLA:

Breitkopf, Sven, et al. "Yb-doped fiber laser system with 1kW, 10mJ and <300fs pulse for the generation of TW class few-cycle pulses." Proceedings of the Ultrafast Optics XII 2019, Bol, HRV Ed. Igor Jovanovic, Bojan Resan, Karoly Osvay, Giacomo Coslovich, SPIE, 2019. 189-192.

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