Absolute-distance-measuring interferometer with contrary beams optical design

Anatol N. Golubev

doi:10.1117/12.172607

1 March 1994 Absolute-distance-measuring interferometer with contrary beams optical design

Anatol N. Golubev

Proceedings Volume 2004, Interferometry VI: Applications; (1994) https://doi.org/10.1117/12.172607
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

A new optical scheme of an absolute distance measuring interferometer with a variable optical frequency has been suggested. In this scheme the contrary beams from reference (stabilized) and measuring (tunable) lasers are used that allows in a simple optical design to ensure both the length measurement and the elimination of an optical path difference fluctuations influence. Usually these two functions are carried out by two channels of the variable optical frequency interferometer--measuring and control channels, each of which is, in essence, an independent separate interferometer with its own optical components. The usage of the contrary beams principle gives a possibility to construct both channels mentioned in the same optical components, providing essential simplification of the interferometer optical design.

Citation Download Citation

Anatol N. Golubev "Absolute-distance-measuring interferometer with contrary beams optical design", Proc. SPIE 2004, Interferometry VI: Applications, (1 March 1994); https://doi.org/10.1117/12.172607

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