A low-loss optical erbium activated silica-hafnia glass-ceramic planar waveguide was fabricated using a bottom-up approach. Hafnia nanoparticles were first prepared by colloidal route and then mixed in a silica-hafnia:Er3+ sol. The resulting sol was deposited on SiO2 substrate. Analysis of the photoluminescence has demonstrated that erbium ions are embedded in a crystalline phase. A lifetime enhancement of the I-4(13/2) metastable level was observed. Losses measurements at 1542 nm highlight a very low attenuation coefficient (0.3 dB/cm) making this nanostructured material suitable for single band waveguide amplifier in the C band of telecommunications. (C) 2007 American Institute of Physics.
Low-loss optical Er3+-activated glass-ceramics planar waveguides fabricated by bottom-up approach / Jestin, Y; Armellini, C; Chiasera, A; Chiappini, A; Ferrari, M; Moser, E; Retoux, R; Righini, Gc. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 91:7(2007). [10.1063/1.2771537]
Low-loss optical Er3+-activated glass-ceramics planar waveguides fabricated by bottom-up approach
Chiasera A;
2007-01-01
Abstract
A low-loss optical erbium activated silica-hafnia glass-ceramic planar waveguide was fabricated using a bottom-up approach. Hafnia nanoparticles were first prepared by colloidal route and then mixed in a silica-hafnia:Er3+ sol. The resulting sol was deposited on SiO2 substrate. Analysis of the photoluminescence has demonstrated that erbium ions are embedded in a crystalline phase. A lifetime enhancement of the I-4(13/2) metastable level was observed. Losses measurements at 1542 nm highlight a very low attenuation coefficient (0.3 dB/cm) making this nanostructured material suitable for single band waveguide amplifier in the C band of telecommunications. (C) 2007 American Institute of Physics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
