@article{Petersen_11_2-2012,
author = "S. Petersen and T. Alkeskjold and F. Poli and E. Coscelli and M. Jørgensen and M. Laurila and J. Lægsgaard and J. Broeng",
title = "Hybrid Ytterbium-doped large-mode-area photonic crystal fiber amplifier for long wavelengths",
volume = "20",
number = "6",
pages = "6010--6020",
month = "february",
year = "2012",
journal = "Optics Express",
}