Modelling Tunable Integrated Optoelectronic Oscillators

Optoelectronic oscillators (OEOs) are recognized for their ability to generate ultra-low phase noise and high-frequency microwave (MW) signals, surpassing traditional electronic oscillators. Recent research has focused on creating wideband tunable and compact integrated OEOs to minimize size and improve stability, which is essential for applications like instrumentation, adaptive radars, communication transceivers, and phase-locked loops. However, the modeling of OEOs is challenging due to the need for simultaneous simulation of electronic and photonic components. This paper reviews various modeling techniques tailored specifically for OEO configurations. Additionally, it extends existing computer-aided model to explore widely tunable hybrid integrated OEOs using Si3N4 micro-ring resonator (MRR) notch filters, considering practical device parameters and integration platform requirements.