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Proceedings Paper

Low-coherence tandem interferometer for remote calibration of gauge blocks
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Paper 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.

Paper Details

Date Published: 20 November 2003
PDF: 8 pages
Proc. SPIE 5190, Recent Developments in Traceable Dimensional Measurements II, (20 November 2003); doi: 10.1117/12.505410
Show Author Affiliations
Akiko Hirai, National Metrology Institute of Japan (Japan)
Hirokazu Matsumoto, National Metrology Institute of Japan (Japan)


Published in SPIE Proceedings Vol. 5190:
Recent Developments in Traceable Dimensional Measurements II
Jennifer E. Decker; Nicholas Brown, Editor(s)

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