Paper 13369-53
Paper 13369-53
Thermal phase modulation of ultraviolet light in aluminium oxide waveguides
29 January 2025 • 5:30 PM - 5:50 PM PST | Moscone South, Room 307 (Level 3)
Abstract
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.
Presenter
Bjorn Jongebloed
Univ. Twente (Netherlands)
Bjorn Jongebloed completed his Bachelor of Science in Applied Physics at the University of Twente, the Netherlands, in 2019. Shortly after, he continued with a Master of Science at the University in Twente, specializing in Applied Nanophotonics. During this time, he joined the Integrated Optical Systems group to work on evanescent field exceptional point biosensors. Bjorn is currently a PhD candidate in the same group, working on the design and characterization of a variety of photonic integrated devices. All these devices are used to demonstrate how to add functionalities to aluminium oxide waveguides.