Development of a Joule-class Yb:YAG amplifier and its implementation in a CPA system generating 1TW pulses

Autor: Wandt, C., Klingebiel, S., Keppler, S., Hornung, M., Loeser, M., Siebold, M., Skrobol, C., Kessel, A., Trushin, S. A., Major, Z., Hein, J., Kaluza, M. C., Krausz, F., Karsch, S.
Jazyk: angličtina
Rok vydání: 2014
Zdroj: Laser & Photonics Reviews 8(2014)6, 875-881
Popis: In this paper the development and implementation of a novel amplifier setup as an additional stage for the CPA pump laser of the Petawatt Field Synthesizer, currently developed at the Max-Planck-Institute of Quantum Optics, is resented. This amplifier design comprises 20 relay-imaged passes through the active medium which are arranged in rotational symmetry. As the gain material, an in-house-developed Yb:YAG active-mirror is used. With this setup, stretched 4 ns seed pulses are amplified to output energies exceeding 1 J with repetition rates of up to 2 Hz. Furthermore, a spectral bandwidth of 3.5nm (FWHM) is maintained during amplification and the compression of the pulses down to their Fourier-limit of 740 fs is achieved. To the best of our knowledge, this is the first demonstration of 1TW pulses generated via CPA in diode-pumped Yb:YAG.
Databáze: OpenAIRE