Broadly tunable femtosecond near- and mid-IR source by direct pumping of an OPA with a 417 MHz Yb:KGW oscillator - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Optics Express Année : 2013

Broadly tunable femtosecond near- and mid-IR source by direct pumping of an OPA with a 417 MHz Yb:KGW oscillator

Résumé

We generate over half a watt of tunable near-IR (1380-1830 nm) and several hundred milliwatts in the mid-IR (2.4-4.2 µm) as well as milliwatt level mid-IR (4.85-9.33 µm) femtosecond radiation by pumping an optical parametric amplifier directly with a 7.4 W Yb:KGW oscillator at 41.7 MHz repetition rate. We use 5 mm PPLN and 2 mm GaSe as downconversion crystals and seed this process by a supercontinuum from a tapered fiber. The system is extremely simple and very stable and could replace more complex OPOs as tunable light sources.
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hal-02394406 , version 1 (04-12-2019)

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Joachim Krauth, Andy Steinmann, Robin Hegenbarth, Matteo Conforti, Harald Giessen. Broadly tunable femtosecond near- and mid-IR source by direct pumping of an OPA with a 417 MHz Yb:KGW oscillator. Optics Express, 2013, 21 (9), pp.11516. ⟨10.1364/OE.21.011516⟩. ⟨hal-02394406⟩
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