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FAN Hongying, ZHANG Hao, ZHAO Qi, JIANG Zewei, JIA Jing, CHEN Hao. Parameter measurement of thermal effect of high-energy laser material based H-S wavefront sensor[J]. LASER TECHNOLOGY, 2018, 42(2): 201-205. DOI: 10.7510/jgjs.issn.1001-3806.2018.02.012
Citation: FAN Hongying, ZHANG Hao, ZHAO Qi, JIANG Zewei, JIA Jing, CHEN Hao. Parameter measurement of thermal effect of high-energy laser material based H-S wavefront sensor[J]. LASER TECHNOLOGY, 2018, 42(2): 201-205. DOI: 10.7510/jgjs.issn.1001-3806.2018.02.012
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Parameter measurement of thermal effect of high-energy laser material based H-S wavefront sensor

  • Southwest Institute of Technical Physics, Chengdu 610041, China

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  • Received Date: May 02, 2017
  • Revised Date: June 23, 2017
  • Published Date: March 24, 2018
    Graphical Abstract
    • Abstract
  • In order to measure thermal effect parameters of high-energy laser material on-line, a testing device with aperture of 50mm was specially designed. Collimating He-Ne laser was used as light source. The optical-path difference of testing beam after passing the material was measured by Hartmann-Shack wavefront sensor. According to wavefront aberration decomposition theory and wavefront transformation relationship, thermal effect parameters of high-energy laser material were gotten. Measurement uncertainty of the device was analyzed and evaluated. The system parameters which affected measurement uncertainty were calibrated. Finally, a comparative experiment of measurement uncertainty was designed and completed. The result shows that, the measurement uncertainty of system wavefront aberration is 0.06λ. The measurement uncertainty is 8.4% with thermal focal length of 30m~120m. The system can be applied to measure thermal effect parameters of high-energy laser material online.
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    • References (18)
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