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Proceedings Paper

Spectral characteristics of optical waveguides fabricated in glass by femtosecond laser direct writing
Author(s): Vítor A. Amorim; Duarte Viveiros; João M. Maia; P. V. S. Marques
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Paper Abstract

The fabrication of optical waveguides with femtosecond laser direct writing is reported in two materials, Suprasil1 and Eagle2000. The influence of typical fabrication parameters, such as pulse energy and scan velocity, on the waveguide’s spectral characteristics is explored from 500 to 1700 nm. Tests conducted in Suprasil1 evidence a strong presence of Rayleigh scattering, hindering the production of low-loss waveguides at short wavelengths. On the other hand, optical waveguides fabricated in Eagle2000 exhibited lower insertion losses at short wavelengths, enabling the fabrication of low-loss broadband optical waveguides with a two order of magnitude higher scan velocity when compared with Suprasil1.

Paper Details

Date Published: 3 October 2019
PDF: 5 pages
Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 112071J (3 October 2019);
Show Author Affiliations
Vítor A. Amorim, INESC-TEC (Portugal)
Univ. do Porto (Portugal)
Duarte Viveiros, INESC-TEC (Portugal)
Univ. do Porto (Portugal)
João M. Maia, INESC-TEC (Portugal)
Univ. do Porto (Portugal)
P. V. S. Marques, INESC-TEC (Portugal)
Univ. do Porto (Portugal)


Published in SPIE Proceedings Vol. 11207:
Fourth International Conference on Applications of Optics and Photonics
Manuel Filipe P. C. M. Martins Costa, Editor(s)

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