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21 April 2009 Diode-pumped ytterbium-based chirped-pulse amplifier
Mathias Siebold, Sandro Klingebiel, Christoph Wandt, Markus Wolf, Joerg Koerner, Marco Hornung, Joachim Hein, Ferenc Krausz, Stefan Karsch
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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.
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Mathias Siebold, Sandro Klingebiel, Christoph Wandt, Markus Wolf, Joerg Koerner, Marco Hornung, Joachim Hein, Ferenc Krausz, and 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); https://doi.org/10.1117/12.816705
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KEYWORDS
Optical amplifiers
Pulsed laser operation
Semiconductor lasers
Mirrors
Glasses
Amplifiers
Femtosecond phenomena
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