$\mu$-Raman/Luminescence Spectroscopy of Ultrafast Laser Inscribed Waveguides in Er<sup>3+</sup>:LiYF<sub>4</sub> for Refractive Index Engineering
Ultrafast-laser inscription (ULI) has emerged as a powerful technique for three-dimensional flexible micro-scale modifications of refractive index and has been successfully employed in laser gain media to realize waveguide (WG) lasers. For efficient pump and laser mode guiding, it is critical to recognize the induced refractive index changes associated with local lattice stresses and defects, depending on the material <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$I$</tex> inscription parameters [1]. We report on the <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mu$</tex> -spectroscopic analysis of ULI waveguides in a fluoride crystal for <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$3-\mu \mathrm{m}$</tex> waveguide lasers.
Authors
- Patrice Camy (ORCID: https://orcid.org/0000-0001-6823-7643)
- Javier R. Vázquez de Aldana (ORCID: https://orcid.org/0000-0002-5264-8525)
- Pavel Loiko
- Carolina Romero (ORCID: https://orcid.org/0000-0002-6088-7673)
- Jı Eun Bae (ORCID: https://orcid.org/0000-0002-3643-4287)
- Xavier Mateos (ORCID: https://orcid.org/0000-0003-1940-1990)
- Alain Braud
- Abdelmjid Benayad
Institutions
- Centre National de la Recherche Scientifique (FR)
- Universidad de Salamanca (ES)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Centre de Recherche sur les Ions, les Matériaux et la Photonique (FR)
- Universitat Rovira i Virgili (ES)
Publication Details
- Published
- 2025-06-23
- DOI
- https://doi.org/10.1109/cleo/europe-eqec65582.2025.11109209
- Primary Topic
- Solid State Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00