Abstract
Optical frequency comb has led to revolutionary progress in absolute distance measurement. In our previous study, we have reported a synthetic-wavelength interferometry of optical frequency combs to improve the accuracy of pulse-to-pulse alignment [1]. However, the system that requires second harmonic generation and two acousto-optic modulators is complicated for practical applications. In the present study, we developed a compact heterodyne pulse-to-pulse interferometer for absolute distance measurement.
© 2015 Japan Society of Applied Physics, Optical Society of America
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