Three-octave supercontinuum generation in thick crystalline aluminum nitride waveguides
We report an efficient extension of supercontinuum generation through dispersion engineering of crystalline aluminum nitride (AlN)-on-sapphire waveguides. Using a tailored epitaxial regrowth of AlN epilayers and an optimized fabrication protocol, the dispersion sensitivity to the waveguide cross-section was enhanced allowing for a significant reach extension of both short and long dispersive wave with optimized pumping conditions, reaching down to 550 nm in the visible and up to 4.5 µm in the mid-infrared.
Authors
- R. Butté (ORCID: https://orcid.org/0000-0002-8474-217X)
- Camille‐Sophie Brès (ORCID: https://orcid.org/0000-0003-2804-1675)
- N. Grandjean (ORCID: https://orcid.org/0000-0003-3610-981X)
- Samantha Sbarra (ORCID: https://orcid.org/0000-0002-0893-927X)
- Pierre Demongodin (ORCID: https://orcid.org/0000-0003-1240-9017)
- Jean-François Carlin
- Samuele Brunetta (ORCID: https://orcid.org/0000-0001-5153-3630)
Institutions
- Photonic Systems (United States) (US)
- Applied Photonics (United Kingdom) (GB)
Publication Details
- Journal
- Optics Letters
- Published
- 2025-10-14
- DOI
- https://doi.org/10.1364/ol.577343
- Citations
- 1
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.73