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Proceedings Paper

Optical and spectroscopic properties of a new erbium-doped soda-lime-alumino-silicate glass for integrated optical amplifiers
Author(s): 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
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Paper 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.

Paper Details

Date Published: 28 January 2006
PDF: 8 pages
Proc. SPIE 6025, ICO20: Optical Communication, 60251M (28 January 2006); doi: 10.1117/12.667070
Show Author Affiliations
S. Berneschi, Nello Carrara Institute of Applied Physics, IFAC CNR (Italy)
Univ. of Bologna (Italy)
M. Bettinelli, Univ. of Verona (Italy)
M. Brenci, Nello Carrara Institute of Applied Physics, IFAC CNR (Italy)
R. Calzolai, Nello Carrara Institute of Applied Physics, IFAC CNR (Italy)
A. Chiasera, Institute of Photonics and Nanotechnology, IFN CNR (Italy)
M. Ferrari, Institute of Photonics and Nanotechnology, IFN CNR (Italy)
M. Matterelli, Univ. of Trento (Italy)
M. Montagna, Institute of Photonics and Nanotechnology, IFN CNR (Italy)
G. Nunzi Conti, Nello Carrara Institute of Applied Physics, IFAC CNR (Italy)
S. Pelli, Nello Carrara Institute of Applied Physics, IFAC CNR (Italy)
S. Sebastiani, Nello Carrara Institute of Applied Physics, IFAC CNR (Italy)
S. Siligardi, Univ. of Modena-Reggio Emilia (Italy)
A. Speghini, Univ. of Verona (Italy)
G. C. Righini, Nello Carrara Institute of Applied Physics, IFAC CNR (Italy)


Published in SPIE Proceedings Vol. 6025:
ICO20: Optical Communication
Yun-Chur Chung; Shizhong Xie, Editor(s)

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