A high-power solid-state laser driver and its laser amplification method

Abstract

The invention discloses a high-power solid-state laser driver and a laser amplifying method thereof, comprising at least one mirror and at least three groups of laser amplifying systems. The laser amplifying systems are arranged in a polygonal shape. The laser amplifying system includes an amplifier, a space A filter, an electro-optic switch, a control circuit, a polarizing mirror and a deformable mirror, the control circuit is connected to the electro-optic switch, and is arranged in sequence according to the propagation path of the laser light: amplifier, spatial filter, electro-optic switch, polarizing mirror , deformable mirror and the amplifier of the next group of laser amplification system, the reflecting mirror and the deforming mirror are located on different sides of the polarizing transmissive mirror; after the seed laser is introduced into the magnifying optical path through the reflecting mirror, it travels through the circular optical path for multiple passes. Amplification, when output is required, a voltage is applied to the electro-optic switch, and the laser is emitted through a reflector. The invention effectively improves the extraction rate of energy storage in the gain medium, improves the overall energy utilization rate of the driver, and significantly reduces resource consumption.

Description

technical field [0001] The invention relates to the technical field of high-power laser drivers, in particular to a high-power solid-state laser driver and a laser amplification method thereof. Background technique [0002] Inertial confinement fusion is a scientific technology that compresses and heats matter to a high temperature and high density state to achieve controllable thermonuclear fusion. The state of matter produced by it belongs to the category of high energy density physics research, which usually requires the construction of large-scale drives to achieve energy loading, such as high-power laser drives, particle accelerators, Z-pinch devices, etc. At present, among these different types of driver technologies, only the laser driver is the most mature and can provide driving energy of the "ignition" level for inertial confinement fusion. Therefore, major countries in the world have carried out different degrees of laser fusion research and built a series of lar...

AI Technical Summary

Problems solved by technology

However, this kind of driver design makes it impossible to effectively extract the energy storage of the gain medium in the amplifier, resulting in a waste of energy storage. At the same time, when the energy demand is further increased, it is necessary to invest huge funds and resources to support the construction of the driver.

And when the scale of the drive reaches a certain level, engineering constraints will make it difficult to continue to expand the scale of the drive, and cannot provide greater energy output capabilities for inertial confinement fusion research.

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