Pedestal waveguides based on GeO2-Bi2O3, GeO2-PbO, Ta2O5 and SiOxNy cores as platforms for optical amplifiers and nonlinear optics applications: Review of recent advances

Julián H. Sierra, Daniel O. Carvalho, L.R.P. Kassab, Camila D. S. Bordon, Ricardo Elgul Samad, Niklaus Ursus Wetter, M.I. Alayo