1 April 1996 High-resolution distance meter using optical modulators at 3.5 GHz
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A high resolution distance meter has been made using optical wave-guide modulators. The modulation frequencies for the optical modulators are around 3.5 GHz, while the modulation frequencies of optical intensity are around 7 GHz because the modulation bias voltages are set to peak points of the electro-optic characteristic. The distance meter was evaluated in the NRLM tunnel. The measurement resolution is 15 micrometers of a standard deviation for a distance range of 0.5 m to 5 m after a correction of a cyclic error.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ichiro Fujima, Ichiro Fujima, Katuo Seta, Katuo Seta, Hirokazu Matsumoto, Hirokazu Matsumoto, Hisashi Yoshida, Hisashi Yoshida, "High-resolution distance meter using optical modulators at 3.5 GHz", Proc. SPIE 2684, High-Speed Semiconductor Laser Sources, (1 April 1996); doi: 10.1117/12.236947; https://doi.org/10.1117/12.236947


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