We have studied Er3+, Yb3+, and Ce3+ codoped microchannel waveguides that were developed by two methods: ionic exchange for heavy metal fluoride glasses [ZrF4-BaF2-AlF3-CeF3 (ZBAC)] and vapor phase deposition for transition metal fluoride glasses [PbF2-ZnF2-GaF3 (PZG)] by using a double-pass technique. For the first time to our knowledge, the measurement of propagation losses and amplification tests were carried out by use of the same experimental setup, leading to complete characterization of the waveguides. Net gains higher than 1 dB/cm were achieved in ZBAC Er/Ce single-mode fluoride glass waveguides.
© 2005 Optical Society of America
Ion Vasilief, Stéphan Guy, Bernard Jacquier, Brigitte Boulard, You Ping Gao, Claire Duverger, Hervé Haquin, Virginie Nazabal, Jean-Luc Adam, Maurice Couchaud, Laurent Fulbert, Cédric Cassagnettes, Frédéric Rooms, and Denis Barbier, "Propagation losses and gain measurements in erbium-doped fluoride glass channel waveguides by use of a double-pass technique," Appl. Opt. 44, 4678-4683 (2005)