Figure 1
From: Wideband tunable microwave signal generation in a silicon-micro-ring-based optoelectronic oscillator
(a) Schematic of the proposed OEO structure and (b) Principle of operation of the proposed tunable OEO. In (a), IM: Intensity modulator, RR: Ring resonator and PD: Photo-detector. In (b), the red curve corresponds to the optical carrier (or laser source frequency); the orange curve illustrates the sideband lobes of the modulated signal, the blue curve indicates the optical transfer function of the RR and the green one represents the generated RF frequency fRF.
