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9 March 2020 2.4-18 µm tunable, picosecond parametric source for the generation of narrowband, μJ-level pulses with sub-8 cm-1 spectral bandwidth and 20 kHz repetition rate (Conference Presentation)
Matthias Baudisch, Moritz Hinkelmann, Dieter Wandt, Jörg Neumann, Ingo Rimke
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Proceedings Volume 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX; 112640I (2020) https://doi.org/10.1117/12.2546338
Event: SPIE LASE, 2020, San Francisco, California, United States
Abstract
We present a MgO:PPLN- and AgGaSe2-based, picosecond OPG/OPA scheme, enabling the generation of mid-to-long-infrared continuously tunable, microjoule energy pulses with a narrow spectral bandwidth of sub-8 cm-1 over the full tuning range. The approach combines a 1-µm-pumped, double-pass OPG setup with a 2-µm-pumped parametric booster amplifier stage. As pump laser is applied a CPA-free Ho:YLF laser delivering 32 µJ at 2051 nm wavelength and 20 kHz repetition rate. The OPG/OPA system specifications of µJ-level pulse energies in combination with narrowband and widely tunable, mid-to-long-IR spectra enable numerous possibilities for mid-IR spectroscopy and wavelength-specific mid-IR material processing.
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Matthias Baudisch, Moritz Hinkelmann, Dieter Wandt, Jörg Neumann, and Ingo Rimke "2.4-18 µm tunable, picosecond parametric source for the generation of narrowband, μJ-level pulses with sub-8 cm-1 spectral bandwidth and 20 kHz repetition rate (Conference Presentation)", Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 112640I (9 March 2020); https://doi.org/10.1117/12.2546338
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KEYWORDS
Picosecond phenomena
Optical amplifiers
Optical design
Optical parametric oscillators
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