Optical Wireless Power Link With Integrated Alignment for Spacecraft

The patent combines the optical alignment function with the optical wireless communication function by using the communication light itself for alignment purposes. The receiver detects the direction of incoming communication light and feeds back alignment information to the transmitter, eliminating the need for a separate alignment system. This merging approach maintains alignment precision while reducing device complexity, volume, weight, and power consumption.

The optical communication system is designed to serve multiple functions: data transmission and alignment establishment. By making the communication light serve dual purposes (carrying data and providing alignment information), the system achieves multi-functionality that resolves the contradiction between precision and complexity.

The patent segments the optical spectrum by using different wavelength bands for power transmission and communication. The power transmission uses one wavelength range while communication uses another, allowing simultaneous operation without interference or damage. This spectral segmentation enables high power transmission efficiency while protecting communication devices from damage.

The patent introduces wavelength filtering as an intermediary mechanism to separate power transmission light from communication light. Filters and wavelength-selective components act as mediators that allow power light to pass to the power receiver while blocking it from reaching communication devices, thus maintaining both efficiency and reliability.