Simulated light-spot light source for high-power laser system

Abstract

The invention discloses a simulated light-spot light source for a high-power laser system. The simulated light-spot light source is characterized by comprising a light source optical fiber, a coupling lens and a lens cone. The light source optical fiber is mounted at one end of the lens cone by a fine screw matched with a middle axle screw hole at one end of the lens cone; the coupling lens is mounted at the other end of the lens cone; the light source optical fiber, the coupling lens and the lens cone share the same optical axis, and the output end face of the light source optical fiber is located on a focal plane of the coupling lens; and the lens cone is fixed on a base. According to the invention, a point source of the light source optical fiber is directly coupled with a far-field point of a system spatial filter through a single lens, and numerical aperture matching is realized, thus, the coupling efficiency of the system is improved, elements and volume of the system are reduced greatly, and the simulated light-spot light source is convenient to use.

Description

technical field [0001] The invention relates to a high-power laser system, in particular to an analog spot light source used in the high-power laser system, which provides direction indication for laser targeting. Background technique [0002] The high-power laser driver is mainly used for the research on the interaction between laser and plasma. It is an important work step to guide the main laser to the target accurately. The usual practice is to use the simulated light coaxial with the main laser to directly guide the target to be placed. Therefore, high-precision coaxial analog light is an essential part of high-power laser drivers. At present, the domestic Shenguang II device expands the laser output of the same frequency as the solid-state laser and then couples it into the main optical path through the transmission space filter near field. to the transmit spatial filter far field. Both of these analog optical systems use a large number of discrete optical components...

AI Technical Summary

Problems solved by technology

Both of these analog optical systems use a large number of discrete optical components, resulting in complex systems and reduced stability

The target simulation light of conventional high-power laser drivers is either directly coupled in the near-field of the laser system by using solid-state lasers, or collimating the light source fiber optic light source and injecting it into the far-field of the high-power laser driver spatial filter through lenses and mirrors. Generally very large and complicated to adjust

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