Laser light source

Abstract

The invention discloses a laser light source. The light source comprises a controller, a laser emitter and a laser light beam adjusting device. The laser emitter and the laser light beam adjusting device are connected with the controller. The controller is used for controlling the laser emitter to emit laser light beams and controlling the laser light beam adjusting device so as to change emissionangles of the laser light beams to allow the light spot size of the laser light beams on the target unit to match the size of the target unit according to the laser transmission distance between thelaser light source and a target unit. According to the invention, when energy transmission is performed on the movement target, the emission angles of the emitted-out laser light beams are adjusted according to the laser transmission distance between the laser light beams and the target unit so as to allow the light spot size of the laser light beams to match the size of the target unit, and the energy transmission efficiency is stable.

Description

technical field [0001] The present invention relates to the technical field of laser light sources for laser wireless energy transmission, and more specifically, to a laser light source. Background technique [0002] With the continuous development of science and technology, laser equipment has been widely used in people's daily life, work and industry, which has brought great convenience to people's life. In recent years, the development of high-power laser technology and high-efficiency photoelectric conversion technology The development provides a solid foundation for further research on laser wireless energy transfer technology. [0003] Laser infinite energy transmission technology uses high-power laser beams as the energy medium, and uses the photoelectric effect to achieve energy transmission. Due to the small divergence angle and high energy density of the laser beam, long-distance high-power transmission can be realized. The size of the receiving device is much sma...

AI Technical Summary

Problems solved by technology

However, when the target system (that is, the system that receives laser energy) is a moving target (for example, a drone or a space spacecraft, etc.), the distance between the laser source and the target system generally changes, and the laser beam with a fixed divergence angle The spot size and optical power density on the photovoltaic panel of the target system will change accordingly, which will directly lead to the reduction of energy transmission efficiency

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