Fabrication of Yb3+/Er3+ codoped Bi2O3–WO3–TeO2 pedestal type waveguide for optical amplifiers - Cacho, Vicente del; Silva, D. M; Assumpção, Thiago Alexandre Alves de; Kassab, Luciana Reyes Pires; Alayo Chávez, Marco Isaías (Optical Materials, 2014)