Long-arm two-color interferometer for measuring the change of air refractive index

Yucong Zhu; Hirokazu Matsumoto; Tadanao Oishi

doi:10.1117/12.34845

1 July 1990 Long-arm two-color interferometer for measuring the change of air refractive index

Yucong Zhu, Hirokazu Matsumoto, Tadanao Oishi

Proceedings Volume 1319, Optics in Complex Systems; (1990) https://doi.org/10.1117/12.34845
Event: 15th International Optics in Complex Systems, 1990, Garmisch, Germany

Abstract

This paper presents a two-color optical path-1ength-cdulated reversible fringe-counting interferometer system for iieasuring the change of the air refractive index. By measuring the changes of the optical path for infrared and visible light the interferoieter cancels the effect of the geoietrical distance change. This system is being tested over a 235 ii path in the tunnel at NRLM. 1.

Citation Download Citation

Yucong Zhu, Hirokazu Matsumoto, and Tadanao Oishi "Long-arm two-color interferometer for measuring the change of air refractive index", Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); https://doi.org/10.1117/12.34845

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