High-resolution distance meter using optical modulators at 3.5 GHz

Ichiro Fujima; Katuo Seta; Hirokazu Matsumoto; Hisashi Yoshida

doi:10.1117/12.236947

1 April 1996 High-resolution distance meter using optical modulators at 3.5 GHz

Ichiro Fujima, Katuo Seta, Hirokazu Matsumoto, Hisashi Yoshida

Proceedings Volume 2684, High-Speed Semiconductor Laser Sources; (1996) https://doi.org/10.1117/12.236947
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

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.

Citation Download Citation

Ichiro Fujima, Katuo Seta, Hirokazu Matsumoto, and Hisashi Yoshida "High-resolution distance meter using optical modulators at 3.5 GHz", Proc. SPIE 2684, High-Speed Semiconductor Laser Sources, (1 April 1996); https://doi.org/10.1117/12.236947

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