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5 March 2021 Mid-IR generation in a compact high repetition rate DFG system based on an Yb-fiber laser
Carsten Cleff, Stefan Matern, Peter Adel, Marc Fischer, Ronald Holzwarth
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Proceedings Volume 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX; 1167006 (2021) https://doi.org/10.1117/12.2578624
Event: SPIE LASE, 2021, Online Only
Abstract
We demonstrate a compact mid-IR system using difference frequency generation based on a femtosecond Ytterbium fiber laser system with a repetition rate of 100 MHz. Based on the fundamental 1040 nm beam, we use frequency conversion in a nonlinear fiber to generate a tuneable signal beam for mid-IR generation based on difference frequency generation. We investigate different nonlinear fibers for signal generation between 1100 nm and 1600 nm for optimum mid-IR generation between 3 µm and 10 µm, for which power levels of more than 200 mW have been observed at an emission wavelength of 4 µm.
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Carsten Cleff, Stefan Matern, Peter Adel, Marc Fischer, and Ronald Holzwarth "Mid-IR generation in a compact high repetition rate DFG system based on an Yb-fiber laser", Proc. SPIE 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX, 1167006 (5 March 2021); https://doi.org/10.1117/12.2578624
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KEYWORDS
Mid-IR
Infrared microscopy
Laser systems engineering
Spectroscopy
Femtosecond phenomena
Laser applications
Laser crystals
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