Thermal phase modulation of ultraviolet light in aluminium oxide waveguides
The large bandgap of aluminum oxide (Al2O3) makes it a suitable candidate for exploring photonic integrated circuits that operate in the ultraviolet wavelength range. This work focusses on thermal modulators to showcase the capability of adding functionalities to passive aluminium oxide waveguides designed for ultraviolet wavelengths. Preliminary results, obtained with a Mach-Zehnder modulator at a wavelength of 369 nm, show thermal phase tuning with a Pπ of 53.8 mW and an extinction ratio of 24 dB.
Authors
- Meindert Dijkstra (ORCID: https://orcid.org/0000-0001-9633-1637)
- Sonia M. García‐Blanco (ORCID: https://orcid.org/0000-0001-8125-9038)
- Ward Hendriks (ORCID: https://orcid.org/0000-0001-6432-0298)
- J Boonstra
- Bjorn Jongebloed (ORCID: https://orcid.org/0009-0003-3905-7186)
Institutions
- University of Twente (NL)
Publication Details
- Published
- 2025-03-19
- DOI
- https://doi.org/10.1117/12.3041813
- Citations
- 1
- Primary Topic
- Photorefractive and Nonlinear Optics
- Type
- article
- Field-Weighted Citation Impact
- 1.25