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Advances in 2 µm polarization-maintaining thulium-doped Q-switched fiber lasers for frequency conversion into the mid-IR

 
: Schneider, Julian; Forster, Patrick; Romano, Clément; Eichhorn, Marc; Kieleck, Christelle

:

Schunemann, Peter G. (Hrsg.) ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Nonlinear Frequency Generation and Conversion: Materials and Devices XX : 6-12 March 2021, Online Only, California, United States
Bellingham, WA: SPIE, 2021 (Proceedings of SPIE 11670)
Paper 116700B, 7 pp.
Conference "Nonlinear Frequency Generation and Conversion - Materials and Devices" <20, 2021, Online>
English
Conference Paper
Fraunhofer IOSB ()
Q-switched Laser; Thulium; fiber laser; polarization-maintaining; Zinc-Germanium-Phosphide; optical parametric oscillator; Mid-IR Laser Source

Abstract
A diode-pumped actively Q-switched Tm3+-doped fiber laser is reported generating pulse energies of 800 µJ, pulse widths of 43 ns and peak powers of 17.5 kW. By using the single-oscillator as a pump source for nonlinear frequency conversion, mid-IR pulse energies of 230 µJ are extracted from a ZnGeP2 (ZGP) optical parametric oscillator (OPO).

: http://publica.fraunhofer.de/documents/N-636145.html