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Proceedings Paper

High-resolution distance meter using optical modulators at 3.5 GHz
Author(s): Ichiro Fujima; Katuo Seta; Hirokazu Matsumoto; Hisashi Yoshida
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Paper 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.

Paper Details

Date Published: 1 April 1996
PDF: 7 pages
Proc. SPIE 2684, High-Speed Semiconductor Laser Sources, (1 April 1996); doi: 10.1117/12.236947
Show Author Affiliations
Ichiro Fujima, National Research Lab. of Metrology (Japan)
Katuo Seta, National Research Lab. of Metrology (Japan)
Hirokazu Matsumoto, National Research Lab. of Metrology (Japan)
Hisashi Yoshida, Nikon Corp. (Japan)

Published in SPIE Proceedings Vol. 2684:
High-Speed Semiconductor Laser Sources
Paul A. Morton; Deborah L. Crawford, Editor(s)

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