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Proceedings Paper

Distance measurement using internal cavity interferometer
Author(s): Mengchao Li; Songlin Zhuang; Gang Zheng; Ling Zhang; Xiaorong Zhao
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Paper Abstract

In this paper, a He-Ne laser not only acts as a pure light source in the interferometer, but also as part of the interferometer. When an interning system may put into the cavity of the laser, the numbers of the laser oscillating modes may be changed. If the change is detected, the distance is determined appropriately. Further accuracy data is obtained by driving the mirror moving with electric-mechanical method. Because of optical gain, the output signal is very easy to further process.

Paper Details

Date Published: 11 November 1999
PDF: 5 pages
Proc. SPIE 3782, Optical Manufacturing and Testing III, (11 November 1999); doi: 10.1117/12.369220
Show Author Affiliations
Mengchao Li, Univ. of Shanghai for Science and Technology (China)
Songlin Zhuang, Univ. of Shanghai for Science and Technology (China)
Gang Zheng, Univ. of Shanghai for Science and Technology (China)
Ling Zhang, Univ. of Shanghai for Science and Technology (China)
Xiaorong Zhao, Univ. of Shanghai for Science and Technology (China)


Published in SPIE Proceedings Vol. 3782:
Optical Manufacturing and Testing III
H. Philip Stahl, Editor(s)

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