All-optical control of photonic states in a photonic molecule

We explore the all-optical control of photonic states in a photonic molecule using a tailored control pulse. By systematically analyzing the requirements for effective state manipulation, we demonstrate that an optimized control pulse can switch off Rabi oscillations between coupled cavities, freezing the system in either symmetric or anti-symmetric supermodes. The arrival time, amplitude, and phase of the control pulse dictate the selective freezing and precise amplitude modulation of photonic states. This deterministic control mechanism enables on-demand photonic state engineering, advancing reconfigurable photonic devices and scalable integrated photonic circuits. Our findings underscore the importance of ultrafast dynamical control in quantum optics and optical information processing.