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20 November 2003 Low-coherence tandem interferometer for remote calibration of gauge blocks
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Abstract
A low-coherence tandem interferometer with a single-mode optical fiber is developed for remote-measurement of length. The optical path difference provided in the first low-coherence interferometer is transmitted through the optical fiber to the second low-coherence interferometer. Low-coherence interference fringes are generated when the optical path difference in the second interferometer, which correspond to the length being measured, compensates that of the first interferometer. A gauge block of 50 mm long has been calibrated remotely through the single-mode optical fiber of 3 km length with a stnadard deviation of 0.12 μm.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Akiko Hirai and Hirokazu Matsumoto "Low-coherence tandem interferometer for remote calibration of gauge blocks", Proc. SPIE 5190, Recent Developments in Traceable Dimensional Measurements II, (20 November 2003); https://doi.org/10.1117/12.505410
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