Far-field wireless power transmission module with MEMS-based laser steering for optogenetic applications

In this study, we propose a far-field wireless power transmission system utilizing a mobile laser steering module (MOLASM) for optogenetic applications. The system integrates a MEMS-based active micromirror and features a battery-free architecture, enabling a miniaturized, lightweight, and mobile operation. This design allows for precise laser steering while maintaining a compact form factor. Additionally, laser superimposition using multiple MOLASMs enhances wirelessly transmitted power, ensuring scalable and adaptable` energy delivery for diverse experimental needs. High-efficiency photovoltaic module harvests energy from precisely targeted laser beams emitted from MOLASM, enabling continuous, wire-free operation without the need for external recharging or replacement. To validate the feasibility of this concept, we designed, implemented, and experimentally evaluated the dynamic beam steering and power delivery performance of the MOLASM system. The results demonstrate its effectiveness in wirelessly powering optogenetic probes over far-field distances, providing a flexible and practical solution for neuromodulation studies.