Strong stimulated Brillouin scattering is incorporated in a standard silicon nitride platform via a tellurium oxide layer. The authors demonstrate applications including a silicon-nitride-based Brillouin amplifier (net optical gain, 5 dB), a compact intermodal stimulated Brillouin laser capable of high-purity radio-frequency signal generation (intrinsic linewidth, 7 Hz) and a widely tunable microwave photonic notch filter (ultranarrow linewidth, 2.2 MHz).
- Yvan Klaver
- Randy te Morsche
- David Marpaung
