Mode switching oscillation of an external cavity laser diode and its application to length measurement

Seiichi Kakuma; Jun Hoshii; Ryoji Ohba

doi:10.1117/12.328649

4 December 1998 Mode switching oscillation of an external-cavity laser diode and its application to length measurement

Seiichi Kakuma, Jun Hoshii, Ryoji Ohba

Proceedings Volume 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications; (1998) https://doi.org/10.1117/12.328649
Event: 1998 International Conference on Applications of Photonic Technology, 1998, Ottawa, Canada

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.

Citation Download Citation

Seiichi Kakuma, Jun Hoshii, and Ryoji Ohba "Mode switching oscillation of an external-cavity laser diode and its application to length measurement", Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); https://doi.org/10.1117/12.328649

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