Optical and spectroscopic properties of a new erbium-doped soda-lime-alumino-silicate glass for integrated optical amplifiers

S. Berneschi; M. Bettinelli; M. Brenci; R. Calzolai; A. Chiasera; M. Ferrari; M. Matterelli; M. Montagna; G. Nunzi Conti; S. Pelli; S. Sebastiani; S. Siligardi; A. Speghini; G. C. Righini

doi:10.1117/12.667070

28 January 2006 Optical and spectroscopic properties of a new erbium-doped soda-lime-alumino-silicate glass for integrated optical amplifiers

S. Berneschi, M. Bettinelli, M. Brenci, R. Calzolai, A. Chiasera, M. Ferrari, M. Matterelli, M. Montagna, G. Nunzi Conti, S. Pelli, S. Sebastiani, S. Siligardi, A. Speghini, G. C. Righini

Author Affiliations +

Proceedings Volume 6025, ICO20: Optical Communication; 60251M (2006) https://doi.org/10.1117/12.667070
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

Silicate glasses are among the best hosts for rare-earth ions, especially for the development of integrated optic amplifiers and lasers, due to their chemical robustness and adaptability to different waveguide fabrication process. Their application to the manufacturing of optical amplifiers, however, may be limited by the relatively narrow fluorescence bandwidth. Here the results of an in-depth study of the effect of an increasing content of alumina on the broadening of the emission bandwidth are reported. We synthesized and characterized a new set of glasses: their basic composition was of the type SiO₂ - Na₂O - CaO - Al₂O₃, with small percentages of P₂O₅ and K₂O. Alumina content was varied from about 1% to 20 mol%. An almost constant concentration of erbium oxide ( ~ 0.4 mol% ) was also present. The spectroscopic properties of these glasses, namely absorption and emission spectra, radiative and experimental lifetimes, are discussed. The characterization of the optical waveguides, fabricated in these glasses by ion-exchange method, is presented as well.

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S. Berneschi, M. Bettinelli, M. Brenci, R. Calzolai, A. Chiasera, M. Ferrari, M. Matterelli, M. Montagna, G. Nunzi Conti, S. Pelli, S. Sebastiani, S. Siligardi, A. Speghini, and G. C. Righini "Optical and spectroscopic properties of a new erbium-doped soda-lime-alumino-silicate glass for integrated optical amplifiers", Proc. SPIE 6025, ICO20: Optical Communication, 60251M (28 January 2006); https://doi.org/10.1117/12.667070

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