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Development of Measuring Parameters System for High-Power Laser

ZHANG Fa-quan ,LIU Hua,CHEN Liang-yi ,HE Jun-hua (Xi'an Institute of Optics and Precision Mechanics , Chinese Academy of Sciences ,Xi'an 710119, China) (Graduate University of Chinese Academy of Sciences ,Beijing 100039,China) (Research Center of Laser Fusion ,CAEP,Mianyang, Sichuan 621900,China)  
The method of measuring accurately energy and pulse time waveform of laser was studied in ICF experiment. A beam was introduced to the energy meter through attenuator. Analog signal from amplifier of the energy meter was input into 8098 single-chip processor after normalized and A/D converted. Data acquired was transferred to master console through the beam coupling communication network and the interface circuit. Another laser beam was changed into electric pulse by ultra-fast photodetectors and input the oscilloscope. Data acquired by the oscilloscope was transported to master console through GPIB bus and GPIB-LAN adapter AD007 by means of VISA language. Waveform parameters were extracted from pulse waveform data which was filtered by wavelet transform through self-adaptive algorithm.
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