Mid-IR (4–5 µm) femtosecond multipass amplification of optical parametric seed pulse up to gigawatt level in Fe2+:ZnSe with optical pumping by a solid-state 3 µm laser
作者： F V Potemkin , E A Migal , A V Pushkin , A A Sirotkin , V I Kozlovsky
DOI: 10.1088/1612-2011/13/12/125403
关键词: Nanosecond 、 Pulse (physics) 、 Pulse duration 、 Laser 、 Optics 、 Femtosecond 、 Optical parametric amplifier 、 Materials science 、 Amplifier 、 Optoelectronics 、 Optical pumping
摘要: We demonstrate a first-of-its-kind efficient amplification of broadband tunable (from 3.8 to 4.8 µm) mid-IR femtosecond seed pulse generated from AgGaS2-based optical parametric amplifier pumped by Cr:forsterite laser in multi-pass Fe2+:ZnSe optically solid-state nanosecond Cr:Yb:Ho:YSGG laser. A total gain 2000 for an input energy 40 nJ has been obtained. The magnitude the output reaches 80 µJ at duration 200 fs.
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