Challenges ahead in Microwave and laser power Transmission :-

Microwave power transmission :

           Several technological tasks lie ahead of us in our work to develop microwave wireless power transmission technology.


• Enhance the accuracy of the microwave beam-pointing control.
• Increase the conversion efficiency from DC power to microwaves (in space).
• Increased the conversion efficiency from microwave to DC power (on the ground).
• Reduce the size and weight of the electronic modules.

Laser power transmission :

           Several tasks lie ahead for us in our work to develop the laser wireless power transmission.


• Develop a space-qualified high-power fiber laser.
• Increase the efficiency of the electricity-laser conversion.
• Increase the efficiency of the laser-electricity conversion.
• Improve the response speed of the FSM (improve the response to fluctuations of the arrival-of-angle of the beam).
• Work out an optimal optical design for high-power lasers.
• Develop methods to prevent weather-induced losses of efficiency and blockage of energy transmission (weather forecast, multi-sites).
• Thermal Control: A key to large-scale laser power transmission is the thermal system design. The concentration factors and lasing efficiencies require the efficient rejection of substantial amounts of heat.
• Laser Rod Material: Research on the optimal laser rod material to balance the frequency, temperature, efficiency, modularity, and stability requirements of space-based direct solar pumped lasers.

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