@article{article0c06493c,
title   = {Production and characterization of Tm 3+ /Yb 3+ codoped pedestal-type PbO–GeO 2 waveguides},
author = {Assumpção, Thiago Alexandre Alves de and Kassab, Luciana Reyes Pires and Alayo Chávez, Marco Isaías and Alvarado, M. A},
year = {2014},
doi = {10.1139/cjp-2013-0591},
journal   = {Canadian Journal of Physics}
}