Array beam wave-front correction system and method based on integrated corrector

Abstract

The invention discloses an array beam wave-front correction system based on an integrated corrector. The system comprises an integrated deformable mirror, an integrated sensor, a first spectroscope, asecond spectroscope, a beam shrinking telescope, a computer and a high-voltage amplifier. The spatial arrangement of grooves of the integrated deformable mirror is in one-to-one correspondence with the spatial arrangement of sub light beams of an array beam. The array beam is reflected to the integrated sensor through the integrated deformable mirror, the integrated sensor feeds back wave-front distortion information of the array beam to the computer, the computer controls voltages of all channels of the high-voltage amplifier according to the wave-front distortion information and outputs thevoltages to drivers in the grooves of the integrated deformable mirror, so that independent correction of wave-front of all the sub-beams of the array beam is achieved. The system integrates a plurality of sets of independent wave-front correction devices corresponding to the sub-beams in a traditional array beam adaptive optical system, and is simple in structure and easy to assemble and control. The working efficiency of the system is greatly improved. The system and the method can be widely applied to the field of incoherent or coherent array beams.

Description

technical field [0001] The invention relates to the field of adaptive optics, in particular to a compact adaptive optics system for array light beams. Background technique [0002] Combining multiple low-power lasers into one output beam is an effective way to improve the far-field energy concentration of the laser emission system. However, the actual beam combining process will inevitably introduce aberrations, which will affect the beam quality. Take the output of the fiber laser matching collimator as an example, when there is an error in the assembly in the axial direction, the focus of the beam will shift axially, resulting in defocus aberration, and the focus position cannot be accurately positioned at the target; when in the vertical direction When there are errors in the assembly, aberrations such as astigmatism and coma will occur, which will make the far-field spot of the beam diffuse and affect its energy concentration. Therefore, the aberration correction of th...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of large, complex, difficult to assemble and difficult to control in the existing array beam wavefront control system, the present invention provides an array beam wavefront correction system based on an integrated corrector, the system has a simple and compact structure and low assembly difficulty , is easy to control, thus solving the problem

Images