Coherent Synthesis of ultra-broadband Optical Parametric AmplifiersC. Manzoni, S.W. Huang, G. Cirmi, P. Farinello, J. Moses, S. De Silvestri, F. X. Kärtner and G. CerulloEPJ Web of Conferences, 41 (2013) 10002DOI: https://doi.org/10.1051/epjconf/20134110002