Study on Hartmann wavefront analyzer calibration method

Yanping Wang, Qianqian Wang, Chong Ma

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Based on the principle of Hartmann wavefront analyzer (HWA), the necessity of calibrating pinholes array to CCD spacing LH is clarified. The method of calibrating LH with known gradient plane wave, and tracing gradient value to the point source accuracy displacement, is presented and discussed. According to this calibration method, a HWA is calibrated and corrected value of LH is given. The calibrated HWA measures three spherical wavefronts with different curvature radii. Compared to ideal spherical wavefronts, wavefront measurement accuracy is up to λ/35, and wavefront aberration peak-valley (PV) value is λ/7. The experimental results show that calibrated value of HWA is accurate, and given calibration method is effective and feasible.

Original languageEnglish
Article number0108003
JournalZhongguo Jiguang/Chinese Journal of Lasers
Volume42
Issue number1
DOIs
Publication statusPublished - 10 Jan 2015

Keywords

  • Adaptive optics
  • Calibration method
  • Hartmann sensor
  • Hartmann wavefront analyzer calibration
  • Measurement
  • Wavefront measurement
  • Wavefront sensor

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Wang, Y., Wang, Q., & Ma, C. (2015). Study on Hartmann wavefront analyzer calibration method. Zhongguo Jiguang/Chinese Journal of Lasers, 42(1), Article 0108003. https://doi.org/10.3788/CJL201542.0108003