He-Ne laser wavelength-shifting interferometry

Year: 2010

Authors: Vannoni M., Sordini A., Molesini G.

Autors Affiliation: CNR – Istituto Nazionale di Ottica, Firenze, 50125, Italy

Abstract: The use of wavelength-shifting interferometry with a He-Ne laser source is presented The approach is based on the thermal expansion of the laser cavity during the warm-up time in conjunction with an unequal path interferometric configuration The optics principles are reviewed and a demonstrative measurement is presented The technique extends the capability of phase-shift acquisition and processing to cases where conventional methods with piezoelectric transducers cannot be used and particularly to external measurement cavities of large diameter Published by Elsevier B V


Volume: 283 (24)      Pages from: 5169  to: 5172

KeyWords: Conventional methods; Frequency-shifting; He-Ne lasers; Interferometric configuration; Large diameter; Laser cavity; Optics principle; Phase shift interferometry; Up time; Wavelength-shifting interferometry, Neon; Optical testing; Phase shift; Thermal expansion; Transducers, Interferometry
DOI: 10.1016/j.optcom.2010.07.078

Citations: 7
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