Amplitude-modulated continuous-wave laser rangefinder employing Bessel–Gauss beamforming

We propose an amplitude-modulated continuous-wave laser rangefinder employing Bessel–Gauss beamforming. Our Bessel–Gauss beam was generated by a newly proposed doublet configuration, which is simple and low cost. Such a beam was propagated > 2 m with a mainlobe having the diameter < 1 m m . We...

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Bibliographic Details
Published in:Applied optics (2004) 2021-08, Vol.60 (24), p.7485
Main Authors: Zhang, Chao, Zhang, Zheyuan, Liu, Sifan, Jin, Lei, Sugiura, Yohei, Set, Sze Yun, Yamashita, Shinji, Ito, Fumihiko
Format: Article
Language:English
Subjects:
Amplitudes
Beamforming
Continuous wave lasers
Diameters
Gaussian beams (optics)
Laser range finders
Lasers
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Summary:We propose an amplitude-modulated continuous-wave laser rangefinder employing Bessel–Gauss beamforming. Our Bessel–Gauss beam was generated by a newly proposed doublet configuration, which is simple and low cost. Such a beam was propagated > 2 m with a mainlobe having the diameter < 1 m m . We have conducted proof-of-concept ranging experiments employing the amplitude-modulated continuous-wave scheme with the Bessel–Gauss beam and obtained ranging results of a measurement distance up to 2 m. To the best of our knowledge, this is the first attempt to apply zeroth-order Bessel–Gauss beamforming to laser rangefinders.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.432556