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Proceedings Paper

Mode switching oscillation of an external cavity laser diode and its application to length measurement
Author(s): Seiichi Kakuma; Jun Hoshii; Ryoji Ohba
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Paper Abstract

An external cavity laser diode system is proposed for a double mode light source, in which the oscillation mode can also alternately switch between TE- and TM-modes. An external cavity laser diode system is implemented to oscillate periodically switching between a TE- and a TM-mode in the identical frequency. The system is applied to length measurement. Accuracy of the measurement is quite excellent with the relative error of +/- 0.0100%, and proves that the present method is one of highly accurate practical non- contact length measuring means. In the present paper, we present both its principle and results of the experiments.

Paper Details

Date Published: 4 December 1998
PDF: 6 pages
Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); doi: 10.1117/12.328649
Show Author Affiliations
Seiichi Kakuma, Hokkaido Univ. (Japan)
Jun Hoshii, Hokkaido Univ. (Japan)
Ryoji Ohba, Hokkaido Univ. (Japan)


Published in SPIE Proceedings Vol. 3491:
1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications
George A. Lampropoulos; Roger A. Lessard, Editor(s)

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