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7 March 2019 CPA-free amplification of sub-10 ps pulses in Ho:YLF to the mJ-level at 2 μm wavelength
Moritz Hinkelmann, Bastian Schulz, Dieter Wandt, Uwe Morgner, Maik Frede, Jörg Neumann, Dietmar Kracht
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Proceedings Volume 10896, Solid State Lasers XXVIII: Technology and Devices; 108960Q (2019) https://doi.org/10.1117/12.2508378
Event: SPIE LASE, 2019, San Francisco, California, United States
Abstract
The generation of sub-10 ps pulses around a wavelength of 2 μm with pulse energy at millijoule-level in a compact CPA-free amplifier chain is presented. This laser source covers a broad range of pulse repetition frequencies from 1 to 100 kHz with a pulse peak power from 136 to 17MW, respectively. We used highly doped Ho:YLF crystals to achieve an overall amplification factor of almost 52 dB. A characterization of these crystals regarding upconversion losses and attainable small-signal gain supports this work.
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Moritz Hinkelmann, Bastian Schulz, Dieter Wandt, Uwe Morgner, Maik Frede, Jörg Neumann, and Dietmar Kracht "CPA-free amplification of sub-10 ps pulses in Ho:YLF to the mJ-level at 2 μm wavelength", Proc. SPIE 10896, Solid State Lasers XXVIII: Technology and Devices, 108960Q (7 March 2019); https://doi.org/10.1117/12.2508378
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KEYWORDS
Picosecond phenomena
Optical amplifiers
Holmium
Upconversion
Ultrafast phenomena
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