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Proceedings Paper

Precision length change followed by dynamic detection of the laser frequency locked to interference fringe
Author(s): Seiichi Kakuma; Jun Hoshii; Norihiko Takahashi; Ryoji Ohba
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Paper Abstract

This paper describes a new interferometric method to measure length changes precisely. Frequency of a laser which is locked to one of interference fringe intensity peaks of an interferometer so that it may change linearly proportional to displacement given to one of the interferometer mirrors. The frequency shift is determined by direct beam frequency counting referring another frequency stabilized laser. Resolution of nm is achieved.

Paper Details

Date Published: 19 July 1999
PDF: 2 pages
Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); doi: 10.1117/12.354930
Show Author Affiliations
Seiichi Kakuma, Hokkaido Univ. (Japan)
Jun Hoshii, Hokkaido Univ. (Japan)
Norihiko Takahashi, Hokkaido Univ. (Japan)
Ryoji Ohba, Hokkaido Univ. (Japan)

Published in SPIE Proceedings Vol. 3749:
18th Congress of the International Commission for Optics
Alexander J. Glass; Joseph W. Goodman; Milton Chang; Arthur H. Guenther; Toshimitsu Asakura, Editor(s)

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