Abstract

We present tunable spectral filters (TSFs) as a variable and precisely adjustable method to control the spectral gain of short-pulse laser systems. The TSFs provide a small residual spectral phase and a high damage threshold, and generate no pre- or post-pulses. The method is demonstrated for two different laser materials and can be applied as an intracavity compensation in regenerative amplifiers as well as a method for pre-compensation in high-energy multipass amplifiers. With this method, a full width at half-maximum bandwidth of 23.9 nm could be demonstrated in a diode-pumped, 50 J ${\mathrm{Yb}\text{:}\mathrm{CaF}}_2$ amplifier.

© 2016 Optical Society of America

54 J pulses with 18 nm bandwidth from a diode-pumped chirped-pulse amplification laser system

Marco Hornung, Hartmut Liebetrau, Sebastian Keppler, Alexander Kessler, Marco Hellwing, Frank Schorcht, Georg A. Becker, Maria Reuter, Jens Polz, Jörg Körner, Joachim Hein, and Malte C. Kaluza
Opt. Lett. 41(22) 5413-5416 (2016)

High contrast, 86 fs, 35 mJ pulses from a diode-pumped, Yb:glass, double-chirped-pulse amplification laser system

Hartmut Liebetrau, Marco Hornung, Sebastian Keppler, Marco Hellwing, Alexander Kessler, Frank Schorcht, Joachim Hein, and Malte C. Kaluza
Opt. Lett. 41(13) 3006-3009 (2016)

Intracavity gain shaping in millijoule-level, high gain Ho:YLF regenerative amplifiers

Krishna Murari, Huseyin Cankaya, Peter Kroetz, Giovanni Cirmi, Peng Li, Axel Ruehl, Ingmar Hartl, and Franz X. Kärtner
Opt. Lett. 41(6) 1114-1117 (2016)

Intracavity stretcher for chirped-pulse amplification in high-power laser systems

Hartmut Liebetrau, Marco Hornung, Sebastian Keppler, Marco Hellwing, Alexander Kessler, Frank Schorcht, Joachim Hein, and Malte C. Kaluza
Opt. Lett. 42(2) 326-329 (2017)

Ultra-stable high average power femtosecond laser system tunable from 1.33 to 20 μm

Tobias Steinle, Florian Mörz, Andy Steinmann, and Harald Giessen
Opt. Lett. 41(21) 4863-4866 (2016)