Erbium-activate HfO2-based waveguides for photonics

Rogeria Rocha Goncalves; Giovanni Carturan; Luca Zampedri; Maurizio Ferrari; Maurizio Montagna; Giancarlo C. Righini; Stefano Pelli; Sidney J. L. Ribeiro; Younes Messaddeq

doi:10.1117/12.524944

19 November 2003 Erbium-activate HfO₂-based waveguides for photonics

Rogeria Rocha Goncalves, Giovanni Carturan, Luca Zampedri, Maurizio Ferrari, Maurizio Montagna, Giancarlo C. Righini, Stefano Pelli, Sidney J. L. Ribeiro, Younes Messaddeq

Author Affiliations +

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.524944
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

70SiO₂ - 30 HfO₂ planar waveguides, activated by Er³⁺ concentration ranging from 0.3 to 1 mol%, were prepared by sol-gel route, using dip-coating deposition on silica glass substrates. The waveguides showed high densification degree, effective intermingling of the two components of the film, and uniform surface morphology. Propagation losses of about 1 dB/cm were measured at 632.8 nm. When pumped with 987 nm or 514.5 nm continuous-wave laser light, the waveguides showed the ⁴I_13/2 → ⁴I_15/2 emission band with a bandwidth of 48 nm. The spectral features were found independent both on erbium content and excitation wavelength. The ⁴I_13/2 level decay curves presented a single exponential profile, with a lifetime between 2.9 - 5.0 ms, depending on the erbium concentration.

Citation Download Citation

Rogeria Rocha Goncalves, Giovanni Carturan, Luca Zampedri, Maurizio Ferrari, Maurizio Montagna, Giancarlo C. Righini, Stefano Pelli, Sidney J. L. Ribeiro, and Younes Messaddeq "Erbium-activate HfO₂-based waveguides for photonics", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.524944

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