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Research on Femtosecond-Laser Pulse-Width Measurement Based on LabVIEW

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Journal of Russian Laser Research Aims and scope

Abstract

In this paper, we propose a measurement system based on single autocorrelation technology and combined with LabVIEW software platform to realize the real-time online measurement of the femtosecond-laser pulse width. The system uses an experimental device based on the Mach–Zehnder interferometer, where the second-harmonic signal of femtosecond laser is obtained by the nonlinear effect of light and nonlinear material; the linear grayscale conversion, median filtering, and threshold segmentation are also applied to the second-harmonic signal. The image centroid, autocorrelation curve, and femtosecond-laser pulse width are obtained, using LabVIEW software. In the experiment, a seed laser source with a central wavelength of 800 nm is used as a test object, and the pulse width is measured to be equal to 261 fs.

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Authors and Affiliations

  1. The School of Optoelectronics Engineering, Changchun University of Science and Technology, Changchun, Jilin, 130022, China

    Xiaoting Sun, Yongliang Li & Yashuai Yang

Authors
  1. Xiaoting Sun
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  2. Yongliang Li
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  3. Yashuai Yang
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Correspondence to Yongliang Li.

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Sun, X., Li, Y. & Yang, Y. Research on Femtosecond-Laser Pulse-Width Measurement Based on LabVIEW. J Russ Laser Res 42, 226–231 (2021). https://doi.org/10.1007/s10946-021-09954-5

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  • DOI: https://doi.org/10.1007/s10946-021-09954-5

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