Observation of a Brillouin dynamic grating in silicon nitride waveguides
Abstract
Brillouin enhanced four wave mixing in the form of a Brillouin dynamic grating (BDG) enables a uniquely tunable filter whose properties can be tuned by purely optical means. This makes the BDG a valuable tool in microwave photonics (MWP). BDGs have been studied extensively in fibers, but the only observation in an integrated platform required exotic materials. Unlocking BDG in a standard and mature platform will enable its integration into large-scale circuits. Here, we demonstrate the first observation of a BDG in a silicon nitride (Si3N4) waveguide. We also present a new and optimized design, which will enhance the BDG response of the waveguide, unlocking the path to large-scale integration into MWP circuits.
- Publication:
-
APL Photonics
- Pub Date:
- April 2024
- DOI:
- 10.1063/5.0178804
- arXiv:
- arXiv:2308.09814
- Bibcode:
- 2024APLP....9d6105B
- Keywords:
-
- ARTICLES;
- Physics - Optics;
- Physics - Applied Physics
- E-Print:
- APL Photonics, Vol. 9, Issue 4, 046105 (2024)