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16 April 2008 High-energy diode-pumped Yb:YAG chirped pulse amplifier
Mathias Siebold, Christoph Wandt, Sandro Klingebiel, Zsuzsanna Major, Sergei Trushin, Izhar Ahmad, Tie-Jun Wang, Joachim Hein, Ferenc Krausz, Stefan Karsch
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Proceedings Volume 6998, Solid State Lasers and Amplifiers III; 69980E (2008) https://doi.org/10.1117/12.780974
Event: SPIE Photonics Europe, 2008, Strasbourg, France
Abstract
A diode-pumped chirped-pulse amplifier (CPA) system based on Yb:glass and Yb:YAG as a picosecond pump source for a future ultra-high peak-power optical parametric chirped-pulse amplifier (OPCPA) is currently under development. Pulses as short as 300 fs generated in an Yb:glass mode-locked oscillator have been stretched to the nanosecond level. The seed pulses are then amplified up to an output pulse energy of 100mJ in a diode-pumped Yb:glass regenerative amplifier and a subsequent Yb:YAG booster. At a small-signal gain of 103 in Yb:YAG the initial pulse bandwidth of 4 nm (FWHM) has been gain-narrowed to 1.5 nm, which allows the re-compression to 1.1 ps. With a multi-pass Yb:YAG amplifier which has been seeded by a Q-switched sub-10-nanosecond laser an output pulse energy of 2.9 J has been achieved. In quasi-cw-mode a peak output power of 7.6kW and a tuning range of 5nm have been obtained. The foot-print-size of the multi-pass amplifier is 0.8m×1.1m which illustrates the degree of system compactness.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Mathias Siebold, Christoph Wandt, Sandro Klingebiel, Zsuzsanna Major, Sergei Trushin, Izhar Ahmad, Tie-Jun Wang, Joachim Hein, Ferenc Krausz, and Stefan Karsch "High-energy diode-pumped Yb:YAG chirped pulse amplifier", Proc. SPIE 6998, Solid State Lasers and Amplifiers III, 69980E (16 April 2008); https://doi.org/10.1117/12.780974
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KEYWORDS
Optical amplifiers
Crystals
Semiconductor lasers
Fiber amplifiers
Pulsed laser operation
Mirrors
Picosecond phenomena
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