Accurately estimating the parameters that characterize physical processes plays a crucial role in revealing the essence of physical processes. Here, we demonstrate how to enhance the estimation precision of optomechanical coupling strength (OCS) through periodic modulation in a standard optomechanical system. In this study, we find that by properly designing the form of periodic modulation, the estimation precision of the OCS parameter can be enhanced significantly, and that the enhanced estimation precision is robust against dissipation channels. Using cavity optomechanics principles in practice, this work opens another avenue for improving quantum sensing by exploiting pump modulation.

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• Cavity quantum electrodynamics
• Light-matter interaction
• Open quantum systems & decoherence
• Optomechanics
• Quantum control
• Quantum optics
• Quantum parameter estimation
• Quantum sensing