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Narin Chanthawong,Satoru Takahashi,Kiyoshi Takamasu,Hirokazu Matsumoto 한국정밀공학회 2014 International Journal of Precision Engineering and Vol. No.
We developed a multi-Fabry-Pérot etalon (multi-FPE) for selecting high-frequency parts of repetition-frequency modes of a shortpulsemode-locked fiber laser at the wavelength of 1.55 mm. The 5-GHz repetition-modified laser beam is transmitted to a fiber-typeMichelson interferometer. The interference fringes exhibit a temporal coherence pattern and can be used for measuring spatialpositioning. The performance of CMM’s axis was determined directly from different positions of two interference fringes.