2024
DOI: 10.3390/s24092869
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An Improved Data Processing Algorithm for Spectrally Resolved Interferometry Using a Femtosecond Laser

Tao Liu,
Hiraku Matsukuma,
Amane Suzuki
et al.

Abstract: Spectrally resolved interferometry utilizing a femtosecond laser is widely employed for absolute distance measurement. However, deviations in the output time pulse of the conventional algorithm through inverse Fourier transform are inevitable. Herein, an improved data processing algorithm employing a time-shifting parameter is proposed to improve the accuracy of spectrally resolved interferometry. The principle of the proposed time-shifting algorithm is analyzed theoretically after clarifying the deviation sou… Show more

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