Spectral characteristics of optical waveguides fabricated in glass by femtosecond laser direct writing

Vítor A. Amorim; Duarte Viveiros; João M. Maia; P. V. S. Marques

doi:10.1117/12.2527400

3 October 2019 Spectral characteristics of optical waveguides fabricated in glass by femtosecond laser direct writing

Vítor A. Amorim, Duarte Viveiros, João M. Maia, P. V. S. Marques

Proceedings Volume 11207, Fourth International Conference on Applications of Optics and Photonics; 112071J (2019) https://doi.org/10.1117/12.2527400
Event: IV International Conference on Applications of Optics and Photonics (AOP 2019), 2019, Lisbon, Portugal

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.

Citation Download Citation

Vítor A. Amorim, Duarte Viveiros, João M. Maia, and P. V. S. Marques "Spectral characteristics of optical waveguides fabricated in glass by femtosecond laser direct writing", Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 112071J (3 October 2019); https://doi.org/10.1117/12.2527400

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