Related Experiment Video
Updated: Apr 20, 2026
12:19
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
Published on: April 4, 2017
9.0K
Mode conversion using stimulated Brillouin scattering in nanophotonic silicon waveguides
Optics Express
|November 18, 2014
Summary
We found that considering radiation pressure and waveguide motion significantly boosts Stimulated Brillouin Scattering mode conversion in silicon nanophotonic waveguides, enabling on-chip applications.
Area of Science:
- Photonics
- Optics
- Materials Science
Background:
- Stimulated Brillouin Scattering (SBS) is a nonlinear optical process.
- High-contrast silicon nanophotonic waveguides are promising for integrated optics.
- Understanding mode conversion is crucial for photonic device design.
Purpose of the Study:
- To investigate SBS-generated mode conversion in high-contrast suspended silicon nanophotonic waveguides.
- To theoretically and numerically analyze the impact of radiation pressure and waveguide motion on mode conversion.
- To explore the interaction of acoustic modes and their effect on optical mode conversion.
Main Methods:
- Theoretical modeling of SBS in nanophotonic waveguides.
- Numerical simulations to quantify mode conversion efficiency.
- Analysis of acoustic mode interactions within the waveguide structure.
Main Results:
- Predicted significantly enhanced mode conversion (over 10x) when radiation pressure and boundary motion are included.
- Determined a 740 μm waveguide length for 20dB mode conversion at 1W pump power.
- Showcased enhanced conversion due to interactions between different acoustic and optical modes.
Conclusions:
- Radiation pressure and waveguide motion are critical factors for efficient SBS mode conversion.
- The findings enable chip-scale photonic applications leveraging SBS.
- Acoustic mode interactions provide a pathway for further enhancing optical mode conversion.
