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High pulse energy ZnGeP2 OPO directly pumped by a Q-switched Tm3+-doped single-oscillator fiber laser

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


Optics Letters 46 (2021), No.9, pp.2139-2142
ISSN: 0146-9592
ISSN: 1539-4794
Journal Article
Fraunhofer IOSB ()

A mid-infrared ZnGeP2 optical parametric oscillator pumped by a Tm3+-doped fiber laser is reported, providing pulse energies of 230µJ, pulse widths of 40 ns, and peak powers of ∼6kW with excellent efficiency and beam quality. The pump source is an actively 𝑄-switched single oscillator optimized to generate high pulse energies.