14 June 1995 Heterodyne interferometer with a dual-mode HeNe laser for absolute distance interferometry
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Abstract
This paper proposes a heterodyne interferometer using a dual longitudinal mode HeNe 633 nm laser for absolute distance interferometry. It can measure the fractional fringe of the synthetic wavelength by an electrical phasemeter with high acccuracy. The measuring period is very short. The common optical path configuration in the interferometer eliminates the affection of air turbulence effectively.
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Yang Zhao, Yang Zhao, Ting Robert Zhou, Ting Robert Zhou, WeiMing Ren, WeiMing Ren, Dacheng Li, Dacheng Li, } "Heterodyne interferometer with a dual-mode HeNe laser for absolute distance interferometry", Proc. SPIE 2544, Interferometry VII: Techniques and Analysis, (14 June 1995); doi: 10.1117/12.211876; https://doi.org/10.1117/12.211876
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