20 November 2003 High-precision long-distance measurement using a frequency comb of a femtosecond mode-locked laser
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Abstract
High-accuracy long-distance is performed using a broad and stable femtosecond frequency comb. Cyclic-error, which has been the main source of inaccuracy in conventional measurements, is reduced more than tenfold, directly achieving high accuracies of 50 μm at 1-GHz frequency and 14 μm at 10-GHz frequency in a 240-m distance measurement using the phase measurement of intermode beats of a femtosecond frequency comb. Traceability of distance meters is discussed.
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Hirokazu Matsumoto, Hirokazu Matsumoto, Kaoru Minoshima, Kaoru Minoshima, Souichi Telada, Souichi Telada, "High-precision long-distance measurement using a frequency comb of a femtosecond mode-locked laser", Proc. SPIE 5190, Recent Developments in Traceable Dimensional Measurements II, (20 November 2003); doi: 10.1117/12.505422; https://doi.org/10.1117/12.505422
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