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Proceedings Paper

Ion-exchanged planar waveguides in different ER3+-doped tellurite glasses
Author(s): Gualtiero Nunzi Conti; Victor K. Tikhomirov; B. Chen; S. Berneschi; Massimo Brenci; Stefano Pelli; Angela B. Seddon; Marco Bettinelli; Adolfo Speghini; Giancarlo C. Righini
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Paper Abstract

Er3+ doped tellurite glasses have recently gained interest because of broad emission band in 1.5 μm telecom window. In this paper we present results of our research aiming at the fabrication of surface waveguides in these glasses. Tungsten-tellurite and zinc-tellurite glasses doped with various Er2O3 percentages have been prepared and the glass stability has been assessed based on difference between Tg and Tc (and Tm) when changing glass modifiers. Broad emission and absorption bands corresponding to transition between 4I13/24I15/2 were observed as expected. Lifetimes of the 4I13/2 level were also measured. Ag+-Na+ ion-exchange was performed with a molten salt composition based on AgNO3, KNO3 and NaNO3. Surface quality of the processed samples was analyzed in order to assess the homogeneity and chemical durability of the surface waveguides. Waveguiding was successfully obtained in both types of glasses and the process was characterized with the prism coupling technique. Several propagation modes at different wavelengths were detected and the diffusion process was characterized for the different concentrations of erbium ions.

Paper Details

Date Published: 17 June 2003
PDF: 6 pages
Proc. SPIE 4990, Rare-Earth-Doped Materials and Devices VII, (17 June 2003); doi: 10.1117/12.478342
Show Author Affiliations
Gualtiero Nunzi Conti, Ctr. di Eccellenza Optronica (Italy)
Istituto di Fisica Applicata Nello Carrara-CNR (Italy)
Victor K. Tikhomirov, Univ. of Nottingham (United Kingdom)
B. Chen, Istituto di Fisica Applicata Nello Carrara-CNR (Italy)
S. Berneschi, Istituto di Fisica Applicata Nello Carrara-CNR (Italy)
Massimo Brenci, Istituto di Fisica Applicata Nello Carrara-CNR (Italy)
Stefano Pelli, Istituto di Fisica Applicata Nello Carrara-CNR (Italy)
Angela B. Seddon, Univ. of Nottingham (United Kingdom)
Marco Bettinelli, Univ. degli Studi di Verona (Italy)
Adolfo Speghini, Univ. degli Studi di Verona (Italy)
Giancarlo C. Righini, Istituto di Fisica Applicata Nello Carrara-CNR (Italy)

Published in SPIE Proceedings Vol. 4990:
Rare-Earth-Doped Materials and Devices VII
Shibin Jiang; Jacques Lucas, Editor(s)

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