4 December 1998 Mode switching oscillation of an external-cavity laser diode and its application to length measurement
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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.
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Seiichi Kakuma, Seiichi Kakuma, Jun Hoshii, Jun Hoshii, Ryoji Ohba, 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); doi: 10.1117/12.328649; https://doi.org/10.1117/12.328649
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