Both laser propulsion and electric propulsion have unique advantages.Combining laser propulsion and electric propulsion can realize the purpose of complementary advantages and eliminating disadvantages.The laser-electric hybrid propulsion technology is systematically reviewed and the structural design,propellant development and testing methods of thruster are summarized.Based on the review,the following conclusions are drawn.Laser-electric hybrid propulsion technology is characterized by high specific impulse and small volume,which is perceived as the power support for nanosat attitude control.Wherein the electrostatic coupling scheme has a simple structure but the thrust is relatively small.At present,it remains in the theoretical stage and the prototype has not be formed,which limits its engineering prospect.The electromagnetic coupling scheme has superior thrust performance and low integration difficulty.In the future,the system mass and volume should be reduced and the modules such as laser,thruster and control system should be integrated to realize the application of space-borne thrusters.
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