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Proceedings Paper

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)

Paper 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.

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 112640I (9 March 2020); doi: 10.1117/12.2546338
Show Author Affiliations
Matthias Baudisch, APE Angewandte Physik & Elektronik GmbH (Germany)
Moritz Hinkelmann, Laser Zentrum Hannover e.V. (Germany)
Dieter Wandt, Laser Zentrum Hannover e.V. (Germany)
Jörg Neumann, Laser Zentrum Hannover e.V. (Germany)
Ingo Rimke, APE Angewandte Physik & Elektronik GmbH (Germany)

Published in SPIE Proceedings Vol. 11264:
Nonlinear Frequency Generation and Conversion: Materials and Devices XIX
Peter G. Schunemann; Kenneth L. Schepler, Editor(s)

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