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Microjoule supercontinuum generation by stretched megawatt femtosecond laser pulses in a large-mode-area photonic-crystal fiber |
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| Authors: | AV Mitrofanov AA Ivanov MV Alfimov AA Podshivalov AM Zheltikov |
| Institution: | aPhysics Department, M.V. Lomonosov Moscow State University, Vorob’evy gory, Moscow 119992, Russia bCenter of Photochemistry, Russian Academy of Sciences, ul. Novatorov 7a, Moscow 117421, Russia cPhysics Department, International Laser Center, M.V. Lomonosov Moscow State University, Vorob’evy gory, Moscow 119992, Russia |
| Abstract: | Microjoule supercontinuum generation is demonstrated using a large-mode-area photonic-crystal fiber (PCF) pumped by an amplified stretched-pulse output of a mode-locked Cr:forsterite laser. A PCF with a mode area of 380 μm2 is employed to transform 300-fs Cr:forsterite laser pulses with a peak-power of a few megawatts into a supercontinuum radiation with a spectrum spanning from 700 to 1800 nm and a total energy of 1.15 μJ. |
| Keywords: | 42 65 Wi 42 81 Qb |
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