21 April 2009 Diode-pumped ytterbium-based chirped-pulse amplifier
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Proceedings Volume 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 713110 (2009) https://doi.org/10.1117/12.816705
Event: XVII International Symposium on Gas Flow and Chemical Lasers and High Power Lasers, 2008, Lisboa, Portugal
Abstract
This paper will describe a comparative study on four different Yb-doped laser materials in a diode-pumped femtosecond chirped-pulse amplifier. Broadband multi-pass amplification using single crystalline Yb:CaF2, Yb:KGW, and Yb:YAG as well as Yb-doped fluoride phosphate glass was demonstrated. The seed pulses as short as 85 fs were generated in a Ti:Sapphire oscillator tuned to a center-wavelength of 1030nm and then boosted to the 100 μJ-level in a diode-pumped Yb:glass regenerative amplifier. Furthermore, the amplifier performance at nanosecond and microsecond time-scales was analyzed. With regard to the 10-nm line-width of the emission cross section the gain narrowing in Yb:YAG was investigated in particular. The pulse spectrum was narrowed to 1.9nm at a total gain of 103 in an Yb:YAG multi-pass amplifier. This corresponds to a compressed pulse duration of 0.85 ps. When seeding with nanosecond pulses of a Q-switched oscillator a maximum pulse energy of 220mJ at a repetition rate of 10Hz has been achieved.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mathias Siebold, Mathias Siebold, Sandro Klingebiel, Sandro Klingebiel, Christoph Wandt, Christoph Wandt, Markus Wolf, Markus Wolf, Joerg Koerner, Joerg Koerner, Marco Hornung, Marco Hornung, Joachim Hein, Joachim Hein, Ferenc Krausz, Ferenc Krausz, Stefan Karsch, Stefan Karsch, } "Diode-pumped ytterbium-based chirped-pulse amplifier", Proc. SPIE 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 713110 (21 April 2009); doi: 10.1117/12.816705; https://doi.org/10.1117/12.816705
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