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Proceedings Paper

Absolute distance measurement with high accuracy using a laser diode
Author(s): Xiao-Ming Sun; Xifu Qiang; Mao-Hua Zhu
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Paper Abstract

In this paper a high accuracy heterodyne interferorneter measuring absolute distance is proposed. The triangular current is applied to the laser diode and frequency shift is performed using Bragg Cell and two-modulation is achieved. A high frequency clock for the phase measurement is employed. The system has high accuracy and high sensitivity.

Paper Details

Date Published: 22 September 1993
PDF: 4 pages
Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156266
Show Author Affiliations
Xiao-Ming Sun, Harbin Institute of Technology (China)
Xifu Qiang, Harbin Institute of Technology (China)
Mao-Hua Zhu, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 2101:
Measurement Technology and Intelligent Instruments
Li Zhu, Editor(s)

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