High-power laser targeting optical path adjusting system and method based on LabVIEW

Abstract

The invention discloses a high-power laser targeting optical path adjusting system and method based on LabVIEW. The system comprises a vacuum cavity, an industrial control computer based on a LabVIEW exploitation platform, a laser spot collection unit connected with the industrial control computer and a laser spot position adjusting unit. The industrial control computer comprises a completely new optical path monitoring and optical path adjusting man-machine interaction interface which is exploited based on LabVIEW. The position of an optical path is determined by the spatial positions of laser spots mapped in a CCD, a LabVIEW exploitation multi-thread parallel operation mechanism is utilized to exploit multi-controller software of different models and different communication modes in an integrated manner, and precise fine tuning of a laser path under a vacuum environment is realized. Laser experiment scientific research personnel can directly utilize the system to conveniently and rapidly carry out experiment optical path optimization and adjustment, the work load of optical path adjustment in the experiment research is reduced, and manpower and material resources are substantially saved.

Description

Technical field [0001] The invention relates to an optical path adjustment system, in particular to a LabVIEW-based strong laser target optical path adjustment system and method. Background technique [0002] With the development of ultra-short and ultra-strong femtosecond laser technology, the peak power of ultra-short and ultra-strong laser devices has reached terawatts (TW, 1TW=10 12 W) or even beat watts (PW, 1PW=10 15 W) level, through optical focusing technology, its peak power density can reach the relativistic level (10 18 W / cm 2 ), which provides a realistic basis for the strong laser-driven target to generate related radiation sources (also known as secondary sources, such as characteristic Kα X-ray sources, Betatron X-ray sources, high-energy proton sources, etc.). In order to obtain a high-quality radiation source and to ensure the effective use of laser energy, most of the experiments for generating various secondary sources by using strong laser-driven targets are ca...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: 1) After vacuuming, the optical path shifts due to the change of the refractive index of the laser propagation medium, and it is impossible to realize real-time monitoring and adjustment of the translation stage to correct the optical path under vacuum; The operation of the displacement is time-consuming. In addition, even the supporting software provided by the developer can only control a translation platform with a specific dimension, which has a single function and is inconvenient to operate, and cannot meet the requirements of complex systems; The position of the reflector is used to locate whether the spot is shifted, and there is human eye error, and the repetition frequency of the laser is 10Hz or lower, which makes it difficult to observe with the human eye; The method is single and the function is not perfect, which cannot meet the specified requirements for use in complex environments; 5) For intense laser experiments, the optical path is complex, the adjustment dimension is large, the control is difficult, the interface is complicated, and the supporting software cannot meet the requirements

[0005] After searching, there are currently no domestic patents related to the adjustment of laser targeting light path based on LabVIEW. The main reason is that it is difficult for experimenters to combine and match controllers of different models and different communication protocols, and there are resource competition problems in the control of multiple communication interfaces of computers. The application of parallel operation mechanism and other technologies are difficult, and there is currently no method that can be used for reference to integrate more than ten dimensions of translation platforms into the same software for real-time monitoring and adjustment

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