Broadly tunable femtosecond near- and mid-IR source by direct pumping of an OPA with a 417 MHz Yb:KGW oscillator
| Autor: | Krauth, Joachim, Steinmann, Andy, Hegenbarth, Robin, Conforti, Matteo, Giessen, Harald |
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| Přispěvatelé: | 4th Physics Institute and Research Center SCoPE, University of Stuttgart, Dipartimento di Ingegneria dell'Informazione [Brescia], Università degli Studi di Brescia [Brescia], Universität Stuttgart [Stuttgart] |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Optics Express Optics Express, Optical Society of America-OSA Publishing, 2013, 21 (9), pp.11516. ⟨10.1364/OE.21.011516⟩ |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/OE.21.011516⟩ |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
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