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Er3+/Yb3+-codoped 95.8 SiO2-4.2 HfO2 planar waveguide was fabricated by the rf-sputtering technique. The sample was doped with 0.2 mol% Er and 0.2 mol% Yb. The thickness and the refractive indices of the waveguide were measured by an m-line apparatus operating at 543.5, 632.8, 1319 and 1542 nm. The losses, for the TE0 mode, were evaluated at 632.8, 1319 and 1542 nm. The structural properties were investigated with energy dispersive spectroscopy and Raman spectroscopy. The waveguide had a single-mode at 1.3 and 1.5 μm and an attenuation coefficient of 0.2 dB/cm at 1.5 μm was obtained. The emission of 4I13/2->4I15/2 of Er3+ ion transition with a 42 nm bandwidth was observed upon excitation in the TE0 mode at 980 and 514.5 nm. The 4I13/2 level decay curves presented a single-exponential profile, with a lifetime of 4.6 ms. Back energy transfer from Er3+ to Yb3+ was demonstrated by …
International Society for Optics and Photonics
Publication date: 
20 Apr 2006

A Chiasera, SNB Bhaktha, M Brenci, A Chiappini, M Ferrari, V Foglietti, RR Gonçalves, Yoann Jestin, A Minotti, M Montagna, E Moser, S Pelli, GC Righini, C Tosello, KC Vishnubhatla

Biblio References: 
Volume: 6183 Pages: 61830O
Integrated Optics, Silicon Photonics, and Photonic Integrated Circuits