Dynamic control of polarization states with barium titanate integrated photonic devices
Abstract
We demonstrate continuous control of polarization from a two-dimensional grating outcoupler of a modified Mach–Zehnder interferometer, fabricated in barium titanate grown on a silicon substrate. The polarization state of out-coupled light at λ≈1550 nm is measured as a function of wavelength and applied bias. We show wavelength-dependent polarization switching from nearly entirely left hand circularly, to linearly, to nearly entirely right hand circularly polarized light. We also demonstrate voltage-tuning of the polarization state of the out-coupled light and achieve switching between left- and right-hand circularly polarized output with
Fields of Study & Subjects
Neural Networks and Reservoir Computing
Photonic Crystals and Applications
Photonic and Optical Devices
Publication details
- Journal / source
- Applied Physics Letters
- Publisher
- AIP Publishing
- Volume
- 128
- Issue
- 16
- Publication date
- 20 April 2026
- Language
- EN