A laser wavefront distortion correction system
A distortion correction and laser wave technology, applied in the field of lasers, can solve the problems of low accuracy and high requirements for correction light, and achieve the effect of high accuracy, low requirements for correction light and small impact
Inactive Publication Date: 2019-10-01
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology
[0004] The present invention aims to overcome the technical defects of the existing laser wavefront distortion correction system, which require high correction light, affect the laser during the correction process, and have low accuracy, and provide a laser wavefront distortion compensation system
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[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0027] In the application documents, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. an actual relationship or order. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other e...
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The invention provides a laser wavefront distortion correction system. The laser wavefront distortion correction system comprises a solid laser, a thermal radiation perturbation source, a wavefront detection module and a control module; the solid laser generates a laser light beam; the wavefront detection module detects the laser light beam to obtain the near-field energy distribution information and the far-field information of the laser light beam; the control module analyzes the near-field energy distribution information and the far-field information of the laser light beam, and controls the thermal radiation perturbation source to emit a thermal radiation perturbation signal to the solid laser according to an analysis result; the solid laser adjusts the laser light beam according to the thermal radiation perturbation signal. According to the laser wavefront distortion correction system, the wavefront detection module and the thermal radiation perturbation source are used for detecting and correcting the laser light beam; the laser wavefront distortion correction system has no requirement on the output characteristic of the corrected light beam; in addition, the system is high in flexibility of perturbation source arrangement mode change and strength control, and high in operability; the beneficial effects of low corrected light requirement, low influence on the laser system and high accuracy are achieved.
Description
【Technical field】 [0001] The invention relates to the technical field of lasers, in particular, the invention relates to a laser wavefront distortion correction system. 【Background technique】 [0002] Since its birth, solid-state lasers have been widely used in industry, scientific research and other fields because of their good monochromaticity, coherence, and directionality. However, under the action of pumping and cooling systems, the gain medium of traditional solid-state lasers produces radial temperature gradients and end face expansion, and the laser rod exhibits effects such as thermal lensing and stress birefringence, which severely limit the output power and beam quality of the laser. , Restricting the progress of laser coherent synthesis, lidar and other fields. In order to eliminate the influence of these reasons on the laser output, people use methods such as stimulated Brillouin scattering (SBS) effect and deformable mirrors to correct the wavefront distortion...
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IPC IPC(8): H01S3/13
Inventor 樊仲维郭广妍陈艳中贾丹康治军赵天卓刘昊何建国
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI