Hongkun Yang

Sichuan University, Hua-yang, Sichuan, China

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Publications (1)3.29 Total impact

  • Dahai Li · Peng Wang · Xiaoshun Li · Hongkun Yang · Huaixin Chen
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    ABSTRACT: A new iterative algorithm to be used to precisely reconstruct near-field distribution from an interferogram of a laser output generated by a cyclic radial-shearing interferometer is proposed. First, by use of a window function around the zero-frequency part of the Fourier transform of the interferogram and calculation of the inverse Fourier transform of the zero-frequency part, we obtain the background intensity distribution of the interferogram. Then, according to the iterative algorithm, the near-field distribution of the laser output is precisely reconstructed from the background intensity distribution obtained in the first step. A numerical simulation and an actual experiment of the near-field reconstruction of the laser output with arbitrary amplitude distribution are implemented successfully.
    No preview · Article · Apr 2005 · Optics Letters

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12 Citations
3.29 Total Impact Points

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  • 2005
    • Sichuan University
      Hua-yang, Sichuan, China